Add PicoLisp language.
Add PicoLisp language.

alitalia/linguist,kyoungrok0517/linguist,yyx990803/linguist,yyx990803/linguist,adamkaplan/linguist,github/linguist,hcutler/linguist,davidzchen/linguist,CoderXpert/linguist,martynbm/linguist,tschf/linguist,kyoungrok0517/linguist,github/linguist,ilyes14/linguist,CegepVictoriaville/linguist,osorgin/linguist,thejameskyle/linguist,christop/linguist,ammaraskar/linguist,R4PaSs/linguist,davidzchen/linguist,ya7lelkom/linguist,FStarLang/linguist,alitalia/linguist,chiranjeevjain/linguist,kr/linguist,SRI-CSL/linguist,MahmoudFayed/linguist,assimovt/ling-ist,jrnold/linguist,yscho/linguist,CegepVictoriaville/linguist,BerkeleyTrue/linguist,yyx990803/linguist,iblech/linguist,cokeboL/linguist,FStarLang/linguist,meunierfrederic/octocatlinguist,github/linguist,a0viedo/linguist,phpsgi/linguist,JJ/linguist,ppaulweber/github-linguist,SRI-CSL/linguist,osorgin/linguist,ya7lelkom/linguist,yscho/linguist,MostAwesomeDude/linguist,hcutler/linguist,jtbandes/linguist,whitj00/linguist,Mx7f/linguist,stanhu/linguist,R4PaSs/linguist,erkyrath/linguist,seanders/linguist,iblech/linguist,sebgod/linguist,ammaraskar/linguist,cybernet14/linguist,scttnlsn/linguist,yyx990803/linguist,georgesuperman/linguist,sagar290/linguist,whitj00/linguist,mwpastore/linguist,nburkley/linguist,georgesuperman/linguist,PsichiX/linguist,erkyrath/linguist,sebgod/linguist,bluebear94/linguist,MadcapJake/linguist,stanhu/linguist,steventhanna/linguist,cokeboL/linguist,CoderXpert/linguist,douglas-larocca/linguist,PsichiX/linguist,assimovt/ling-ist,mattn/linguist,Mx7f/linguist,jtbandes/linguist,hcatlin/linguist,github/linguist,matt40k/linguist,cybernet14/linguist,pchaigno/linguist,steventhanna/linguist,nburkley/linguist,pchaigno/linguist,phpsgi/linguist,mattn/linguist,sebgod/linguist,JJ/linguist,MostAwesomeDude/linguist,meunierfrederic/octocatlinguist,manveru/linguist,christop/linguist,manveru/linguist,stanhu/linguist,meunierfrederic/octocatlinguist,thejameskyle/linguist,sebgod/linguist,tschf/linguist,jjatria/linguist,douglas-larocca/linguist,adamkaplan/linguist,scttnlsn/linguist,jjatria/linguist,pcantrell/linguist,pchaigno/linguist,MahmoudFayed/linguist,martynbm/linguist,seanders/linguist,JJ/linguist,c-lipka/linguist,hcatlin/linguist,chiranjeevjain/linguist,erkyrath/linguist,jrnold/linguist,JJ/linguist,matt40k/linguist,pcantrell/linguist,kr/linguist,erkyrath/linguist,stanhu/linguist,ppaulweber/github-linguist,a0viedo/linguist,sagar290/linguist,BerkeleyTrue/linguist,c-lipka/linguist,ilyes14/linguist,bluebear94/linguist,MadcapJake/linguist,mwpastore/linguist,pchaigno/linguist