Move lsp config to local file structure

.config/nvim/lsp/tclsp.lua

@@ -0,0 +1,22 @@
+---@brief
+---
+--- https://github.com/nmoroze/tclint
+---
+--- `tclsp`, a language server for Tcl
+---
+--- `tclsp` can be installed via `pipx`:
+--- ```sh
+--- pipx install tclint
+--- ```
+---
+--- Or via `pip`:
+--- ```sh
+--- pip install tclint
+--- ```
+
+---@type vim.lsp.Config
+return {
+  cmd = { 'tclsp' },
+  filetypes = { 'tcl', 'sdc', 'xdc', 'upf' },
+  root_markers = { 'tclint.toml', '.tclint', 'pyproject.toml', '.git' },
+}