[z2083] Improve a little thing from last commit. Thanks to Reamer for pointing

(based on commit [12122] - 9a96f25)

(based on commit [s1701] - a1d6f2e)
[z2084] Fix more warnings.

* Remove warning: format '<format>' expects type '<type1>', but argument has type 'size_t'
* Remove warning: statement has no effect

Signed-off-by: Schmoozerd <schmoozerd@scriptdev2.com>

(based on commit [12123] - 47c527a)

(based on commit [s1702] - 90acae0)
[z2085] Improve support for game/ subdirectories

* Add game directory to AdditionalIncludes (VC90)
* Add game directory to AdditionalIncludes (VC100)
* Simplify #include macros for subdirectories

Thanks to Shyax, LordJZ and Zergtmn for testing cmake

(based on commit [12124] - f363c78)

(based on commit [s1703] - e3317a8)