Remove custom LSP manager plugins and add new language server clients

- Delete old lsp_manager plugin (custom websocket-based LSP client implementation)
- Delete java_lsp_client plugin
- Delete python_lsp_client plugin
- Remove unused LSP DTO files in src/libs/dto/code/lsp/
- Add new language_server_clients plugin directory
- Improve event_factory with register_events method
- Add PYTHONDONTWRITEBYTECODE to user config
- Update events init.py docstring

user_config/bin/newton

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+# . CONFIG.sh
+
+# set -o xtrace       ## To debug scripts
+# set -o errexit      ## To exit on error
+# set -o errunset     ## To exit if a variable is referenced but not set
+
+export PYTHONDONTWRITEBYTECODE=1
+
+
+function main() {
+    call_path=`pwd`
+
+    files=()
+    for f in "$@"; do
+        target=$(readlink -f "${f}")
+        i="${#files[@]}"
+        size=$(($i + 1))
+        files[$size]="${target}"
+    done
+
+    python /opt/newton.zip "${files[@]}"
+}
+main "$@";