feat: add charp_roslyn support

Add support for the new csharp ls used in vscode

lua/lazyvim/plugins/extras/lang/charp_roslyn.lua

@@ -0,0 +1,18 @@
+local capabilities = vim.lsp.protocol.make_client_capabilities()
+capabilities = require("cmp_nvim_lsp").default_capabilities(capabilities)
+local on_attach = function() end
+return {
+  {
+    "jmederosalvarado/roslyn.nvim",
+    ft = "cs",
+    config = function()
+      require("roslyn").setup({
+
+        dotnet_cmd = "dotnet", -- this is the default
+        roslyn_version = "4.8.0-3.23475.7", -- this is the default
+        on_attach = on_attach,
+        capabilities = capabilities,
+      })
+    end,
+  },
+}