Add language to system information
Add language to system information

Related to #4649.

superspindel/cgeo,KublaikhanGeek/cgeo,pstorch/cgeo,schwabe/cgeo,matej116/cgeo,yummy222/cgeo,mucek4/cgeo,SammysHP/cgeo,ThibaultR/cgeo,xiaoyanit/cgeo,rsudev/c-geo-opensource,marco-dev/c-geo-opensource,samueltardieu/cgeo,vishwakulkarni/cgeo,mucek4/cgeo,madankb/cgeo,S-Bartfast/cgeo,SammysHP/cgeo,cgeo/cgeo,schwabe/cgeo,lewurm/cgeo,KublaikhanGeek/cgeo,rsudev/c-geo-opensource,kumy/cgeo,Huertix/cgeo,yummy222/cgeo,madankb/cgeo,ThibaultR/cgeo,SammysHP/cgeo,pstorch/cgeo,yummy222/cgeo,cgeo/cgeo,mucek4/cgeo,Bananeweizen/cgeo,cgeo/cgeo,vishwakulkarni/cgeo,Bananeweizen/cgeo,pstorch/cgeo,lewurm/cgeo,auricgoldfinger/cgeo,ThibaultR/cgeo,S-Bartfast/cgeo,marco-dev/c-geo-opensource,samueltardieu/cgeo,brok85/cgeo,Bananeweizen/cgeo,auricgoldfinger/cgeo,Huertix/cgeo,kumy/cgeo,brok85/cgeo,tobiasge/cgeo,rsudev/c-geo-opensource,xiaoyanit/cgeo,superspindel/cgeo,auricgoldfinger/cgeo,tobiasge/cgeo,KublaikhanGeek/cgeo,matej116/cgeo,brok85/cgeo,matej116/cgeo,vishwakulkarni/cgeo,lewurm/cgeo,madankb/cgeo,schwabe/cgeo,superspindel/cgeo,cgeo/cgeo,Huertix/cgeo,samueltardieu/cgeo,marco-dev/c-geo-opensource,xiaoyanit/cgeo,kumy/cgeo,S-Bartfast/cgeo,tobiasge/cgeo,schwabe/cgeo