feat: enhance Task and lowering functionality with FuncType support

Signed-off-by: Gordon Smith <GordonJSmith@gmail.com>

Author: GordonSmith

grammar/Wit.g4

@@ -341,41 +341,41 @@ VALID_SEMVER
   | VERSION_CORE DASH PRERELEASE PLUS BUILD
   ;
 
-VERSION_CORE: MAJOR DOT MINOR DOT PATCH
+fragment VERSION_CORE: MAJOR DOT MINOR DOT PATCH
   ;
 
-MAJOR: NUM_ID
+fragment MAJOR: NUM_ID
   ;
 
-MINOR: NUM_ID
+fragment MINOR: NUM_ID
   ;
 
-PATCH: NUM_ID
+fragment PATCH: NUM_ID
   ;
 
-PRERELEASE: DOTSEPERATED_PRERELEASE_ID
+fragment PRERELEASE: DOTSEPERATED_PRERELEASE_ID
   ;
 
-DOTSEPERATED_PRERELEASE_ID
+fragment DOTSEPERATED_PRERELEASE_ID
   : PRERELEASE_ID
   | PRERELEASE_ID DOT DOTSEPERATED_PRERELEASE_ID
   ;
 
-BUILD: DOTSEPERATED_BUILD_ID
+fragment BUILD: DOTSEPERATED_BUILD_ID
   ;
 
-DOTSEPERATED_BUILD_ID
+fragment DOTSEPERATED_BUILD_ID
   : BUILD_ID
   | BUILD_ID DOT DOTSEPERATED_BUILD_ID
   ;
 
-PRERELEASE_ID: ALPHANUM_ID | DIGITS
+fragment PRERELEASE_ID: ALPHANUM_ID | DIGITS
   ;
 
-BUILD_ID: ALPHANUM_ID | DIGITS
+fragment BUILD_ID: ALPHANUM_ID | DIGITS
   ;
 
-ALPHANUM_ID
+fragment ALPHANUM_ID
   : NON_DIGIT
   | NON_DIGIT ID_CHARS
   | ID_CHARS NON_DIGIT
@@ -385,16 +385,16 @@ ALPHANUM_ID
 NUM_ID: '0' | POSITIVE_DIGIT | POSITIVE_DIGIT DIGITS
   ;
 
-ID_CHARS: ID_CHAR | ID_CHAR ID_CHARS
+fragment ID_CHARS: ID_CHAR | ID_CHAR ID_CHARS
   ;
 
-ID_CHAR: DIGIT | NON_DIGIT
+fragment ID_CHAR: DIGIT | NON_DIGIT
   ;
 
-NON_DIGIT: LETTER | DASH
+fragment NON_DIGIT: LETTER | DASH
   ;
 
-DIGITS: DIGIT | DIGIT DIGITS
+fragment DIGITS: DIGIT | DIGIT DIGITS
   ;
 
 fragment DIGIT: [0-9]