feat: add EO LSP Server

Signed-off-by: azerr <azerr@redhat.com>

Author: angelozerr

docs/UserDefinedLanguageServer.md

@@ -155,6 +155,7 @@ pre-filled with server name, command, mappings and potential configuration.
 * [Clojure LSP](./user-defined-ls/clojure-lsp.md)
 * [Dart LSP](./user-defined-ls/dart-lsp.md) 
 * [Docker Language Server](./user-defined-ls/docker-language-server.md)
+* [EO LSP Server](./user-defined-ls/eo-lsp-server.md) 
 * [Erlang Language Server](./user-defined-ls/erlang-ls.md)
 * [ESLint Language Server](./user-defined-ls/vscode-eslint-language-server.md) 
 * [Go Language Server](./user-defined-ls/gopls.md)

docs/images/user-defined-ls/eo-lsp-server/demo_ls.gif

@@ -0,0 +1,53 @@
+# EO Language Server
+
+To enable [EO](https://www.eolang.org/) language support in your IDE, you can integrate the [EO LSP Server](https://github.com/objectionary/eo-lsp-server) by following these steps:
+
+![EO LS demo](../images/user-defined-ls/eo-lsp-server/demo_ls.gif)
+
+---
+
+## Step 1: Install the Language Server
+
+1. Open an `.eo` file in your project.
+2. Click on **Install LSP Server for EOLANG**:
+
+   ![Open file](../images/user-defined-ls/eo-lsp-server/open_file.png)
+
+3. This will open the [New Language Server Dialog](../UserDefinedLanguageServer.md#new-language-server-dialog) with `LSP Server for EOLANG` pre-selected:
+
+   ![New Language Server Dialog](../images/user-defined-ls/eo-lsp-server/new_language_server_dialog.png)
+
+4. Click **OK**. This will create the `LSP Server for EOLANG` definition and start the installation:
+
+   ![Installing Language Server](../images/user-defined-ls/eo-lsp-server/language_server_installing.png)
+
+5. Once the installation completes, the server should start automatically and provide EO language support (diagnostics and semantic tokens.).
+
+### Troubleshooting Installation
+
+If the installation fails, you can customize the installation settings in the **Installer** tab,  
+then click on the **Run Installation** hyperlink to reinstall the server:
+
+![Installer tab](../images/user-defined-ls/eo-lsp-server/installer_tab.png)
+
+See [Installer descriptor](../UserDefinedLanguageServerTemplate.md#installer-descriptor) for more information.
+
+---
+
+## Step 2: Install TextMate Bundle
+
+Even if [EO LSP Server](https://github.com/objectionary/eo-lsp-server) can support LSP semantic tokens, You can also set up the EO TextMate bundle manually.
+
+* Clone the [eo-vscode](https://github.com/objectionary/eo-vscode) repository:
+
+  ```bash
+  git clone https://github.com/objectionary/eo-vscode.git
+
+* Open TextMate Bundles settings
+
+![TextMate Bundles Settings](../images/user-defined-ls/eo-lsp-server/textmate_bundles_settings.png)
+
+* Click the `+` button and select the folder [eo-vscode](https://github.com/objectionary/eo-vscode) folder.
+  This folder contains the modified package.json and the TextMate grammar.
+
+Once done, IntelliJ will apply syntax highlighting, bracket matching, and other basic editor features for .eo files.

docs/images/user-defined-ls/eo-lsp-server/installer_tab.png

@@ -0,0 +1 @@
+{}

docs/images/user-defined-ls/eo-lsp-server/language_server_installing.png

@@ -0,0 +1,37 @@
+{
+  "id": "eo-lsp-serverr",
+  "name": "LSP Server for EOLANG",
+  "executeOnStartServer": false,
+  "properties": {
+    "workingDir" : "$USER_HOME$/.lsp4ij/lsp/eo-lsp-server/node_modules"
+  },
+  "check": {
+    "exec": {
+      "name": "Trying current command",
+      "command": "${server.command}",
+      "timeout": 2000
+    }
+  },
+  "run": {
+    "exec": {
+      "name": "Install LSP Server for EOLANG",
+      "workingDir": "${workingDir}",
+      "ignoreStderr": true,
+      "command": {
+        "windows": "npm.cmd install eo-lsp-server --force",
+        "default": "npm install eo-lsp-server --force"
+      },
+      "onSuccess": {
+        "configureServer": {
+          "name": "Configure LSP Server for EOLANG command",
+          "command": {
+            "windows": "${workingDir}/.bin/eo-lsp-server.cmd --stdio",
+            "default": "${workingDir}/.bin/eo-lsp-server --stdio"
+          },
+          "update": true
+        }
+      }
+    }
+  }
+}
+