Move lsp config to local file structure

.config/nvim/lsp/azure_pipelines_ls.lua

@@ -0,0 +1,39 @@
+---@brief
+---
+--- https://github.com/microsoft/azure-pipelines-language-server
+---
+--- An Azure Pipelines language server
+---
+--- `azure-pipelines-ls` can be installed via `npm`:
+---
+--- ```sh
+--- npm install -g azure-pipelines-language-server
+--- ```
+---
+--- By default `azure-pipelines-ls` will only work in files named `azure-pipelines.yml`, this can be changed by providing additional settings like so:
+--- ```lua
+--- vim.lsp.config('azure_pipelines_ls', {
+---   ... -- other configuration
+---   settings = {
+---       yaml = {
+---           schemas = {
+---               ["https://raw.githubusercontent.com/microsoft/azure-pipelines-vscode/master/service-schema.json"] = {
+---                   "/azure-pipeline*.y*l",
+---                   "/*.azure*",
+---                   "Azure-Pipelines/**/*.y*l",
+---                   "Pipelines/*.y*l",
+---               },
+---           },
+---       },
+---   },
+--- })
+--- ```
+--- The Azure Pipelines LSP is a fork of `yaml-language-server` and as such the same settings can be passed to it as `yaml-language-server`.
+
+---@type vim.lsp.Config
+return {
+  cmd = { 'azure-pipelines-language-server', '--stdio' },
+  filetypes = { 'yaml' },
+  root_markers = { 'azure-pipelines.yml' },
+  settings = {},
+}