Major lsp overhaul. Use new 0.11+ apis, remove lspconfig, remove lots of

mason/lspconfig util plugins. Currently supports following lsps: gopls,
clangd, lua-language-server, cmake-language-server

home/.config/nvim/lua/language_servers/cmake.lua

@@ -0,0 +1,14 @@
+return {
+    cmd = { "cmake-language-server" },
+    filetypes = { "cmake" },
+    root_markers = {
+        "CMakeLists.txt",
+        "CMakePresets.json",
+        "CTestConfig.cmake",
+        "build",
+        "cmake",
+    },
+    init_options = {
+        buildDirectory = "build",
+    },
+}