SyntaxConstructClassifier uses imported VSLanguageService for getting uses of all symbols in file

SyntaxConstructClassifier code cleanup
refactor SyntaxCodeClassifier
namespaces are not colorized
do not colorize modules
do not colorize active pattern cases
Merge pull request #164 from vasily-kirichenko/coloring

SyntaxConstructClassifier uses imported VSLanguageService for getting uses of all symbols in file