Restrict comments to 100 characters

This is a rule I try enforce in PR but it's a bit of a hassle, this will
give a lint warning when it happens resulting in:

- Yellow underline in supported editors when eslint is installed
- Compilation will succeed since it's a warning not an error
- CI will fail as it does not allow lint warnings

Special case comments are ignored which includes @vt comments, table
comments and commented out code.

src/browser/services/CharSizeService.ts

@@ -60,7 +60,8 @@ interface IMeasureResult {
   height: number;
 }
 
-// TODO: For supporting browsers we should also provide a CanvasCharDimensionsProvider that uses ctx.measureText
+// TODO: For supporting browsers we should also provide a CanvasCharDimensionsProvider that uses
+// ctx.measureText
 class DomMeasureStrategy implements IMeasureStrategy {
   private _result: IMeasureResult = { width: 0, height: 0 };
   private _measureElement: HTMLElement;