Fix several documentation related typos.
Found via `codespell -S "*.desktop,*.diff,./intern,./extern,./locale,./AUTHORS,./source/blender/blenlib/tests/BLI_string_utf8_test.cc,./doc/license/bf-members.txt" -L accessort,abd,aci,alo,ans,ba,bording,childrens,clen,constructin,datas,dependees,domin,eary,ege,eiter,elemt,eles,endianess,enew,espace,finded,fiter,fpt,groupd,hist,implementating,indext,ine,infront,inout,inouts,inpt,ist,lene,listenter,lod,maks,masia,mata,mis,mke,nam,nd,ned,opose,ot,outlow,parm,parms,passt,pinter,pixelx,poin,pres,ptd,re-usable,re-use,re-used,re-uses,re-using,ridiculus,schem,soler,strack,suh,te,tesselate,tham,ue,vai,varius,wew`
Pull Request: https://projects.blender.org/blender/blender/pulls/145824
* CHARTAB: not needed anymore with improved copy/paste support and text input.
* IDPOIN: replaced by SEARCH_MENU.
* ICONROW/ICONTEXTROW: replaced by RNA enums.
* NUMABS: can use min/max limits instead.
* BUT_TOGDUAL, TOG3, TOGR, SLI: not used in 2.5 interface.
- moved files in proper directories and adapted paths where needed
- deleted doc/oldbugs.txt (asked confirmation to jesterking a week ago in irc)
- still working on doxygen files, for now I'll leave them in doc/
- NOTE: while checking if other files were referring to these files, I noted that
"GPL-license.txt" is also used in the files below:
- release/windows/installer/00.sconsblender.nsi
- release/windows/specific.sh
but these files should't be affected by this commit, but please check :)
