Nvim: switch lsp to lua and cmp to coq

.config/nvim/init.vim

@@ -41,17 +41,8 @@ Plug 'danymat/neogen'
 " }}}
 
 " Completion {{{
-Plug 'hrsh7th/nvim-cmp'
-Plug 'hrsh7th/cmp-nvim-lsp'
-Plug 'hrsh7th/cmp-buffer'
-Plug 'hrsh7th/cmp-path'
-Plug 'hrsh7th/cmp-cmdline'
-Plug 'hrsh7th/cmp-calc'
-Plug 'joshzcold/cmp-jenkinsfile'
-Plug 'petertriho/cmp-git'
-Plug 'mstanciu552/cmp-matlab'
-Plug 'SirVer/ultisnips' | Plug 'honza/vim-snippets'
-Plug 'quangnguyen30192/cmp-nvim-ultisnips'
+Plug 'ms-jpq/coq_nvim'
+Plug 'ms-jpq/coq.artifacts', {'branch': 'artifacts'}
 " }}}
 
 " Files switch, jump and grep-like tools {{{