True lazy loading, lsp installs, and nvim-compe

Installation scripts for:
+ bashls
+ ccls
+ clangd
+ pylsp
+ pyright
+ sumneko
+ zls

And adjusted a few keymaps

lua/keymap/init.lua

@@ -276,18 +276,20 @@ map('n', '<leader>p', ':lua pm_sync()<CR>', {noremap = true})
 
 -- LSP
 local lsp_commands = {
-    new = {'<', '>','a','d','D','f','h','n','r','s'},
+    new = {'h','d','D','r','f','n','i','s','S','<','>','a'},
     old = {
-        'diagnostic.goto_prev', -- <
-        'diagnostic.goto_next', -- >
-        'buf.code_action',      -- a
+        'buf.hover',            -- h
         'buf.definition',       -- d
         'buf.declaration',      -- D
-        'buf.formatting',       -- f
-        'buf.hover',            -- h
-        'buf.rename',           -- n
         'buf.references',       -- r
-        'buf.document_symbol'   -- s
+        'buf.formatting',       -- f
+        'buf.rename',           -- n
+        'buf.implementation',   -- i
+        'buf.document_symbol',  -- s
+        'buf.signature_help',   -- S
+        'diagnostic.goto_prev', -- <
+        'diagnostic.goto_next', -- >
+        'buf.code_action'       -- a
     }
 }
 for i = 1, #lsp_commands.new do