Add support for autodetecting URLs and making hyperlinks (#7691)

This pull request is the initial implementation of hyperlink auto
detection

Overall design:
- Upon startup, TerminalCore gives the TextBuffer some patterns it
  should know about
- Whenever something in the viewport changes (i.e. text
  output/scrolling), TerminalControl tells TerminalCore (through a
  throttled function for performance) to retrieve the visible pattern
  locations from the TextBuffer
- When the renderer encounters a region that is associated with a
  pattern, it paints that region differently 

References #5001
Closes #574

.github/actions/spell-check/dictionary/apis.txt

@@ -53,6 +53,7 @@ rx
 serializer
 SIZENS
 spsc
+sregex
 STDCPP
 strchr
 syscall
@@ -62,6 +63,7 @@ tx
 UPDATEINIFILE
 userenv
 wcstoui
+wsregex
 XDocument
 XElement
 XParse

.github/actions/spell-check/dictionary/dictionary.txt

@@ -152433,6 +152433,7 @@ ft-lb
 ftncmd
 ftnerr
 FTP
+ftp
 ft-pdl
 FTPI
 FTS

.github/actions/spell-check/dictionary/names.txt

@@ -8,6 +8,7 @@ dhowett
 Diviness
 dsafa
 duhowett
+ekg
 ethanschoonover
 Firefox
 Gatta

.github/linters/.markdown-lint.yml

@@ -28,11 +28,13 @@ MD007:
   indent: 2                   # Unordered list indentation
 MD013:
   line_length: 400            # Line length 80 is far to short
+MD024: false                  # Allow multiple headings with same content
 MD026:
   punctuation: ".,;:!。，；:"  # List of not allowed
 MD029: false                  # Ordered list item prefix
 MD033: false                  # Allow inline HTML
 MD036: false                  # Emphasis used instead of a heading
+MD040: false                  # Allow ``` blocks in md files with no language specified
 
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