Prepare SVG export with wx30

git-svn-id: http://svn.code.sf.net/p/codeblocks/code/trunk@9936 2a5c6006-c6dd-42ca-98ab-0921f2732cef
Tried adding PCH usage of sdk.h; but, the plugin needs more than minor changes to get it to work. Therefore, I added define of NOPCH and removed defines of WX_PRECOMP and CB_PRECOMP.
Tried adding PCH usage of sdk.h; but, the plugin needs more than minor changes to get it to work. Therefore, I added define of NOPCH and removed defines of WX_PRECOMP and CB_PRECOMP.
Removed define of WX_PRECOMP and added object search folder needed to use PCH sdk.h.
Removed define of WX_PRECOMP or NOPCH; and, added object search folder needed to use PCH sdk.h. Also, did other things like adding/moving sdk.h include and removing obsolete pragma implementation.
Removed define of WX_PRECOMP and added object search folder needed to use PCH sdk.h. And, removed #pragma implementation or moved location of sdk.h include.
Removed define of WX_PRECOMP and added object search folder needed to use PCH sdk.h. Replaced include of windef.h with wx/msw/wrapwin.h, instead.
Removed define of WX_PRECOMP and added compiler option "-include sdk.h" with the object search folder needed to use PCH sdk.h. Added search folder "..\..\..\sdk\wxscintilla\include" if needed.
Added define of NOPCH and removed defines of WX_PRECOMP and CB_PRECOMP.
Removed define of WX_PRECOMP.
Removed define of WX_PRECOMP and added object search folder needed to use PCH sdk.h.
Reverted to SVN trunk version of three CB Projects.