Documentation - Fix various typos found in codebase (#413)

Documentation - Fix various typos found in codebase (#413)

Found via `codespell -q 3 -S "*.fr" -L aadd,abnd,abord,acces,acount,adn,afile,aline,alo,alocation,alog,als,anc,ane,anid,anormal,anout,ans,anumber,aother,aparent,apoints,aprogram,asender,asign,asnd,ba,bbuild,bloc,bord,bu,caf,cas,childrens,childs,classe,clen,commun,cylindre,discret,don,dout,dum,ede,enew,entite,entites,extrem,fo,fonction,geometrie,guid,hilight,hilights,hist,identic,ii,indx,inout,invalide,ist,iterm,llength,lod,maked,mape,mke,modeling,methode,mye,myu,nam,nd,nin,normale,normales,ons,parametre,parametres,periode,pinter,pres,projet,remplace,reste,resul,secont,serie,siz,shs,slin,som,somme,syntaxe,sur,te,thei,theis,ther,theres,thes,thev,thex,thet,tol,transfert,unhilight,unhilights,va,vas,verifie,vertexes,weight`