rename debugger app to elixir_ls_debuger (#280)

otherwise it conflicts with OTP debugger

Author: lukaszsamson

DEVELOPMENT.md

@@ -1,7 +1,7 @@
 # Packaging
 
 Bump the changelog
-Bump the version numbers in `apps/debugger/mix.exs`, `apps/elixir_ls_utils/mix.exs`, and `apps/language_server/mix.exs`
+Bump the version numbers in `apps/elixir_ls_debugger/mix.exs`, `apps/elixir_ls_utils/mix.exs`, and `apps/language_server/mix.exs`
 Make PR
 Merge PR
 Make the tag from the new master

apps/debugger/.gitignore renamed to apps/elixir_ls_debugger/.gitignore

@@ -5,7 +5,7 @@ defmodule ElixirLS.Debugger.CLI do
   def main do
     WireProtocol.intercept_output(&Output.print/1, &Output.print_err/1)
     Launch.start_mix()
-    Application.ensure_all_started(:debugger, :permanent)
+    Application.ensure_all_started(:elixir_ls_debugger, :permanent)
     IO.puts("Started ElixirLS debugger v#{Launch.debugger_version()}")
     Launch.print_versions()
     warn_if_unsupported_version()