[LSP] go - Support gopls through LspInstall. (#177)

init.lua

@@ -48,6 +48,7 @@ require('lsp')
 require('lsp.clangd')
 require('lsp.lua-ls')
 require('lsp.bash-ls')
+require('lsp.go-ls')
 require('lsp.js-ts-ls')
 require('lsp.python-ls')
 require('lsp.json-ls')

lua/lsp/go-ls.lua

@@ -0,0 +1,4 @@
+require'lspconfig'.gopls.setup{
+    cmd = {DATA_PATH .. "/lspinstall/go/gopls"},
+    on_attach = require'lsp'.common_on_attach
+}