Added tests.
Support getOccurrences for modifier keywords.
A few touch-ups to the code.
Initial signature help work for tagged templates.
Merge branch 'master' into taggedSigHelp
Merge branch 'master' into taggedSigHelp
Stylistic changes/comment fixups.
Merge branch 'master' into getOccsForModifiers
Added 'Constructor' to 'isDeclaration' predicate.
Look through constructor parameters if acc. modifier.
Account for variable statements, as they are not declarations.
Added a few tests.
Merge branch 'master' into taggedSigHelp
Got sig help working in the template head.
Got sig help working in tagged no-sub templates.
Merge branch 'master' into taggedSigHelp
Refactored code, adjusted for residing out of bounds of the template.
Fixed isUnclosedTemplateLiteral to account for new possible inputs.
Merge branch 'master' into taggedSigHelp

Conflicts:
	src/services/signatureHelp.ts
Fixed template head offsetting.