common: refactor common library pt2 (#8588)

- remove common lib
- split settings, remove common-md
- move ipc interop/kb_layout to interop
- rename core -> settings, settings -> old_settings
- os-detect header-only; interop -> PowerToysInterop
- split notifications, move single-use headers where they're used
- winstore lib
- rename com utils
- rename Updating and Telemetry projects
- rename core -> settings-ui and remove examples folder
- rename settings-ui folder + consisent common/version include

src/common/utils/string_utils.h

@@ -0,0 +1,50 @@
+#pragma once
+
+#include <string_view>
+#include <string>
+#include <algorithm>
+
+template<typename CharT>
+struct default_trim_arg
+{
+};
+
+template<>
+struct default_trim_arg<char>
+{
+    static inline constexpr std::string_view value = " \t\r\n";
+};
+
+template<>
+struct default_trim_arg<wchar_t>
+{
+    static inline constexpr std::wstring_view value = L" \t\r\n";
+};
+
+template<typename CharT>
+inline std::basic_string_view<CharT> left_trim(std::basic_string_view<CharT> s, const std::basic_string_view<CharT> chars_to_trim = default_trim_arg<CharT>::value)
+{
+    s.remove_prefix(std::min<size_t>(s.find_first_not_of(chars_to_trim), size(s)));
+    return s;
+}
+
+template<typename CharT>
+inline std::basic_string_view<CharT> right_trim(std::basic_string_view<CharT> s, const std::basic_string_view<CharT> chars_to_trim = default_trim_arg<CharT>::value)
+{
+    s.remove_suffix(std::min<size_t>(size(s) - s.find_last_not_of(chars_to_trim) - 1, size(s)));
+    return s;
+}
+
+template<typename CharT>
+inline std::basic_string_view<CharT> trim(std::basic_string_view<CharT> s, const std::basic_string_view<CharT> chars_to_trim = default_trim_arg<CharT>::value)
+{
+    return left_trim(right_trim(s, chars_to_trim), chars_to_trim);
+}
+
+inline void replace_chars(std::string& s, const std::string_view chars_to_replace, const char replacement_char)
+{
+    for (const char c : chars_to_replace)
+    {
+        std::replace(begin(s), end(s), c, replacement_char);
+    }
+}