Adds medical icons (#727)

Co-authored-by: @karsa-mistmere 
Co-authored-by: @ericfennis
Co-authored-by: @delnyn

icons/microscope.svg

@@ -0,0 +1,18 @@
+<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"
+>
+  <path d="M6 18h8" />
+  <path d="M3 22h18" />
+  <path d="M14 22a7 7 0 1 0 0-14h-1" />
+  <path d="M9 14h2" />
+  <path d="M8 6h4" />
+  <path d="M13 10V6.5a.5.5 0 0 0-.5-.5.5.5 0 0 1-.5-.5V3a1 1 0 0 0-1-1H9a1 1 0 0 0-1 1v2.5a.5.5 0 0 1-.5.5.5.5 0 0 0-.5.5V10c0 1.1.9 2 2 2h2a2 2 0 0 0 2-2Z" />
+</svg>

icons/stethoscope.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"
+>
+  <path d="M4.8 2.3A.3.3 0 1 0 5 2H4a2 2 0 0 0-2 2v5a6 6 0 0 0 6 6v0a6 6 0 0 0 6-6V4a2 2 0 0 0-2-2h-1a.2.2 0 1 0 .3.3" />
+  <path d="M8 15v1a6 6 0 0 0 6 6v0a6 6 0 0 0 6-6v-4" />
+  <circle cx="20" cy="10" r="2" />
+</svg>

icons/syringe.svg

@@ -0,0 +1,18 @@
+<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"
+>
+  <path d="m18 2 4 4" />
+  <path d="m17 7 3-3" />
+  <path d="M19 9 8.7 19.3c-1 1-2.5 1-3.4 0l-.6-.6c-1-1-1-2.5 0-3.4L15 5" />
+  <path d="m9 11 4 4" />
+  <path d="m5 19-3 3" />
+  <path d="m14 4 6 6" />
+</svg>

tags.json

@@ -1989,6 +1989,13 @@
     "sound",
     "mute"
   ],
+  "microscope": [
+    "medical",
+    "education",
+    "science",
+    "imaging",
+    "research"
+  ],
   "milestone": [
     "sign",
     "signpost",
@@ -2793,6 +2800,13 @@
     "remove",
     "unrate"
   ],
+  "stethoscope": [
+    "phonendoscope",
+    "medical",
+    "heart",
+    "lungs",
+    "sound"
+  ],
   "stop-circle": [
     "media",
     "music"
@@ -2882,6 +2896,15 @@
     "war",
     "weapon"
   ],
+  "syringe": [
+    "medicine",
+    "medical",
+    "needle",
+    "pump",
+    "plunger",
+    "nozzle",
+    "blood"
+  ],
   "table": [
     "sheet",
     "grid"