added const overload for operator [] in matrix view, added stddef.h include,...

added const overload for operator [] in matrix view, added stddef.h include, renamed Proxy to Vectorview

requested review from @m214003

assigned to @m300433

added 78 commits

• e5c93820...ab423862 - 76 commits from branch develop
• 14d708c2 - fixed pipes debug output
• df081264 - added const overload for operator [] in matrix view, added stddef.h include,...

Compare with previous version

added 3 commits

• e6438cb0 - 1 commit from branch develop
• 2d875b02 - fixed pipes debug output
• 4c3e6802 - added const overload for operator [] in matrix view, added stddef.h include,...

Compare with previous version

enabled an automatic merge when the pipeline for 4c3e6802 succeeds

merged