feat: Add modules for nodejs 18 and 16 LTS. 18 is not compatible with Ubuntu 18

data/modules/tools/nodejs/16.19.json

+{
+  "general": {
+    "url": "https://nodejs.org/en/download/releases/",
+    "authors": [
+      "Christian Dreher <c.dreher@kit.edu>"
+    ]
+  },
+
+  "update": {
+    "download": {
+      "url": "https://nodejs.org/download/release/v16.18.1/node-v16.18.1-linux-x64.tar.xz",
+      "md5_checksum": "e580e257385ac9faa0c3ab1ca4dbb783"
+    }
+  },
+
+  "prepare": {
+    "extract": {
+      "file": "node-v16.18.1-linux-x64.tar.xz",
+      "extract_into": "$MODULE_PATH"
+    }
+  },
+
+  "install": {
+    "env": {
+      "NODE_16_18": "$MODULE_PATH/node-v16.18.1-linux-x64/bin/node",
+      "NPM_8_19": "$MODULE_PATH/node-v16.18.1-linux-x64/bin/npm"
+    },
+    "executables": {
+      "node-16.18": {
+        "exec": "$MODULE_PATH/node-v16.18.1-linux-x64/bin/node"
+      },
+      "npm-8.19": {
+        "pre_exec_commands": [
+          "export PATH=$MODULE_PATH/node-v16.18.1-linux-x64/bin:$PATH"
+        ],
+        "exec": "$MODULE_PATH/node-v16.18.1-linux-x64/bin/npm"
+      }
+    }
+  }
+}

data/modules/tools/nodejs/18.13.json

+{
+  "general": {
+    "url": "https://nodejs.org/en/download/releases/",
+    "authors": [
+      "Christian Dreher <c.dreher@kit.edu>"
+    ]
+  },
+
+  "update": {
+    "download": {
+      "url": "https://nodejs.org/download/release/v18.13.0/node-v18.13.0-linux-x64.tar.xz",
+      "md5_checksum": "e9c258601271fe0cce4a28d165ba43da"
+    }
+  },
+
+  "prepare": {
+    "extract": {
+      "file": "node-v18.13.0-linux-x64.tar.xz",
+      "extract_into": "$MODULE_PATH"
+    }
+  },
+
+  "install": {
+    "env": {
+      "NODE_18_13": "$MODULE_PATH/node-v18.13.0-linux-x64/bin/node",
+      "NPM_8_19": "$MODULE_PATH/node-v18.13.0-linux-x64/bin/npm"
+    },
+    "executables": {
+      "node-18.13": {
+        "exec": "$MODULE_PATH/node-v18.13.0-linux-x64/bin/node"
+      },
+      "npm-8.19": {
+        "pre_exec_commands": [
+          "export PATH=$MODULE_PATH/node-v18.13.0-linux-x64/bin:$PATH"
+        ],
+        "exec": "$MODULE_PATH/node-v18.13.0-linux-x64/bin/npm"
+      }
+    }
+  }
+}