Combine `global_init` and `global_stmts` functions into `global_stmts`#2696

ubaidsk merged 5 commits intolcompilers:mainlcompilers/lpython:mainfrom

Vipul-Cariappa:combine-init-and-stmtsVipul-Cariappa/lpython:combine-init-and-stmtsCopy head branch name to clipboard