plugins/by-name: add missing test files

- Added "empty" test for:
  - autoclose
  - commentary
  - easyescape
  - floaterm
  - fugitive
  - gitmessenger
  - intellitab
  - nvim-bqf
  - nvim-colorizer
  - surround
  - treesitter-refactor
  - vim-matchup

tests/test-sources/plugins/by-name/autoclose/default.nix

@@ -0,0 +1,5 @@
+{
+  empty = {
+    plugins.autoclose.enable = true;
+  };
+}

tests/test-sources/plugins/by-name/commentary/default.nix

@@ -0,0 +1,5 @@
+{
+  empty = {
+    plugins.commentary.enable = true;
+  };
+}

tests/test-sources/plugins/by-name/easyescape/default.nix

@@ -0,0 +1,5 @@
+{
+  empty = {
+    plugins.easyescape.enable = true;
+  };
+}

tests/test-sources/plugins/by-name/floaterm/default.nix

@@ -0,0 +1,5 @@
+{
+  empty = {
+    plugins.floaterm.enable = true;
+  };
+}

tests/test-sources/plugins/by-name/fugitive/default.nix

@@ -0,0 +1,5 @@
+{
+  empty = {
+    plugins.fugitive.enable = true;
+  };
+}

tests/test-sources/plugins/by-name/gitmessenger/default.nix

@@ -0,0 +1,5 @@
+{
+  empty = {
+    plugins.gitmessenger.enable = true;
+  };
+}

tests/test-sources/plugins/by-name/intellitab/default.nix

@@ -0,0 +1,5 @@
+{
+  empty = {
+    plugins.intellitab.enable = false;
+  };
+}

tests/test-sources/plugins/by-name/nvim-bqf/default.nix

@@ -0,0 +1,5 @@
+{
+  empty = {
+    plugins.nvim-bqf.enable = true;
+  };
+}

tests/test-sources/plugins/by-name/nvim-colorizer/default.nix

@@ -0,0 +1,5 @@
+{
+  empty = {
+    plugins.nvim-colorizer.enable = true;
+  };
+}

tests/test-sources/plugins/by-name/surround/default.nix

@@ -0,0 +1,5 @@
+{
+  empty = {
+    plugins.surround.enable = true;
+  };
+}

tests/test-sources/plugins/by-name/treesitter-refactor/default.nix

@@ -0,0 +1,9 @@
+{
+  empty = {
+    plugins = {
+      treesitter-refactor.enable = true;
+      # Also needs treesitter, to avoid warnings
+      treesitter.enable = true;
+    };
+  };
+}

tests/test-sources/plugins/by-name/vim-matchup/default.nix

@@ -0,0 +1,5 @@
+{
+  empty = {
+    plugins.vim-matchup.enable = true;
+  };
+}