fix: Handle COUNT(*) as column name in KQL dialect

[LiamTorrelli]

This commit fixes an issue where using COUNT() as a column name in Apache
Superset's drill-by functionality would result in a 'Semantic error:
Unsupported calculated column name COUNT()' error.

Changes:

• Add special handling for COUNT(*) as a column name
• Refactor _get_projection_or_summarize method to reduce complexity
• Add helper methods for processing columns and checking for COUNT(*)
• Differentiate between literal_column and regular column usage of COUNT(*)
• Add special handling for the case where there are WHERE clauses
• Add handling for quoted "COUNT(*)" expressions
• Add test case to verify the fix works correctly
• Fix linting issues and format code according to Black style guidelines

The fix ensures that COUNT() is properly translated to count() when used as
a function and properly quoted as ["COUNT()"] when used as a column name or
alias, which resolves the error in Superset's drill-by functionality."

[ag-ramachandran]

@LiamTorrelli, I was working on this seperately as well. I have a PR (#39). The changes on that are a little more minimal. Perhaps, would you want to check if it works for all cases you had ?