cquoting: compat macros for MSC, minor cleanups
cquoting: compat macros for MSC, minor cleanups

- MSC: macros for 'inline', 'strcasecmp'
- Use stdbool.h instead custom enum for 'bool'.

markokr/skytools,tarvip/skytools,overdrive3000/skytools,markokr/skytools,overdrive3000/skytools,tarvip/skytools,tarvip/skytools,overdrive3000/skytools,markokr/skytools