Syntax Highlighting for PR/PRJ

Changes:
Renamed the file from CWBinding.Resources.Clarion-PRJ.xshd
Changed the name of the sytnax defintion (which appears in file mode)
Turned on Case Sensitive
AssignOn & AssignOff
Strings use " vs '
Added "then" to FlowControlKeyWords
Color Changes
Removed vestigial settings from from .CLW
Altered the comment at the top
Moved pragma to it's own KeyWords group

did not confirm the the rest of the words in keywords were appropriate