Add arrow-*-[to/from]-line icons (#1158)

* Add `arrow-right-to-line` (tab) icon

<kbd>tab</kbd>

* Add `arrow-left-to-line` icon

* Add `arrow-up-to-line` icon

* Add `arrow-down-to-line` (download) icon

* Add `arrow-up-from-line` icon

* Add `arrow-down-from-line` icon

* Add `arrow-left-from-line` icon

* Add `arrow-right-from-line` icon

* Extend `arrow-*-line`s

* Add `expand`/`collapse` metadata

Closes #980.

---------

Co-authored-by: Eric Fennis <eric.fennis@gmail.com>

icons/arrow-down-from-line.json

@@ -0,0 +1,14 @@
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "direction",
+    "download",
+    "expand",
+    "fold",
+    "vertical"
+  ],
+  "categories": [
+    "arrows",
+    "files"
+  ]
+}

icons/arrow-down-from-line.svg

@@ -0,0 +1,15 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <line x1="12" x2="12" y1="21" y2="7" />
+  <polyline points="6 15 12 21 18 15" />
+  <path d="M19 3H5" />
+</svg>

icons/arrow-down-to-line.json

@@ -0,0 +1,18 @@
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "direction",
+    "download",
+    "git",
+    "version control",
+    "pull",
+    "collapse",
+    "fold",
+    "vertical"
+  ],
+  "categories": [
+    "arrows",
+    "files",
+    "development"
+  ]
+}

icons/arrow-down-to-line.svg

@@ -0,0 +1,15 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <line x1="12" x2="12" y1="17" y2="3" />
+  <polyline points="6 11 12 17 18 11" />
+  <path d="M19 21H5" />
+</svg>

icons/arrow-left-from-line.json

@@ -0,0 +1,12 @@
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "direction",
+    "expand",
+    "fold",
+    "horizontal"
+  ],
+  "categories": [
+    "arrows"
+  ]
+}

icons/arrow-left-from-line.svg

@@ -0,0 +1,15 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <line x1="3" x2="17" y1="12" y2="12" />
+  <polyline points="9 6 3 12 9 18" />
+  <path d="M21 19V5" />
+</svg>

icons/arrow-left-to-line.json

@@ -0,0 +1,12 @@
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "direction",
+    "collapse",
+    "fold",
+    "horizontal"
+  ],
+  "categories": [
+    "arrows"
+  ]
+}

icons/arrow-left-to-line.svg

@@ -0,0 +1,15 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <line x1="7" x2="21" y1="12" y2="12" />
+  <polyline points="13 6 7 12 13 18" />
+  <path d="M3 19V5" />
+</svg>

icons/arrow-right-from-line.json

@@ -0,0 +1,13 @@
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "direction",
+    "export",
+    "expand",
+    "fold",
+    "horizontal"
+  ],
+  "categories": [
+    "arrows"
+  ]
+}

icons/arrow-right-from-line.svg

@@ -0,0 +1,15 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <line x1="21" x2="7" y1="12" y2="12" />
+  <polyline points="15 18 21 12 15 6" />
+  <path d="M3 5v14" />
+</svg>

icons/arrow-right-to-line.json

@@ -0,0 +1,19 @@
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "keyboard",
+    "key",
+    "tab",
+    "mac",
+    "button",
+    "indent",
+    "direction",
+    "collapse",
+    "fold",
+    "horizontal"
+  ],
+  "categories": [
+    "arrows",
+    "development"
+  ]
+}

icons/arrow-right-to-line.svg

@@ -0,0 +1,15 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <line x1="17" x2="3" y1="12" y2="12" />
+  <polyline points="11 18 17 12 11 6" />
+  <path d="M21 5v14" />
+</svg>

icons/arrow-up-from-line.json

@@ -0,0 +1,18 @@
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "direction",
+    "upload",
+    "git",
+    "version control",
+    "push",
+    "expand",
+    "fold",
+    "vertical"
+  ],
+  "categories": [
+    "arrows",
+    "files",
+    "development"
+  ]
+}

icons/arrow-up-from-line.svg

@@ -0,0 +1,15 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <line x1="12" x2="12" y1="3" y2="17" />
+  <polyline points="18 9 12 3 6 9" />
+  <path d="M5 21h14" />
+</svg>

icons/arrow-up-to-line.json

@@ -0,0 +1,14 @@
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "direction",
+    "upload",
+    "collapse",
+    "fold",
+    "vertical"
+  ],
+  "categories": [
+    "arrows",
+    "files"
+  ]
+}

icons/arrow-up-to-line.svg

@@ -0,0 +1,15 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <line x1="12" x2="12" y1="7" y2="21" />
+  <polyline points="18 13 12 7 6 13" />
+  <path d="M5 3h14" />
+</svg>