Added and updated notes.
Edited Notes/PCH Notes.txt
Used SVN export to update to svn revision 9760; then used Bat-Files/apply-cb_Git-default_patches.bat to apply the default patches.
Created and applied Bat-Files/apply-cb_Git-PCH_patches.bat.
Added cb_cbp_wx30_add_PCH_back_high_gain.patch to Bat-Files/apply-cb_Git-PCH_patches.bat and applied the patch.
Edited Notes/PCH Notes.txt; added two new suggested rules.
Hand edited Patches/cb_src_wx30_add_PCH.patch; still needs testing.
Edited Bat-Files/apply-cb_Git-PCH_patches.bat; still needs testing.
Added src/ContribPlugins_NoDepends_wx30.workspace to help testing wx30 PCH work.
Retitled workspace.
Re-did SVN export for svn revision 9760; ran the two bat files default & PCH.
Created Notes/Rules and suggestions for using PCH properly under Windows.txt from a section of PCH Notes.txt
Edited Bat-Files/apply-cb_Git-PCH_patches.bat by adding cb_cbp_wx28_add_objs_include_search.patch to it.