Dbg backend for debugger #1016

Job	Run time
static analysis (Elixir 1.15.x \| Erlang/OTP 25.x)	18s
mix test windows (Elixir 1.13.x \| Erlang/OTP 22.x)	7m 2s
mix test windows (Elixir 1.13.x \| Erlang/OTP 23.x)	10m 13s
mix test windows (Elixir 1.13.x \| Erlang/OTP 24.x)	7m 10s
mix test windows (Elixir 1.13.x \| Erlang/OTP 25.x)	5m 57s
mix test windows (Elixir 1.14.x \| Erlang/OTP 23.x)	8m 23s
mix test windows (Elixir 1.14.x \| Erlang/OTP 24.x)	7m 11s
mix test windows (Elixir 1.14.x \| Erlang/OTP 25.x)	6m 4s
mix test windows (Elixir 1.15.x \| Erlang/OTP 24.x)	6m 19s
mix test windows (Elixir 1.15.x \| Erlang/OTP 25.x)	5m 27s
mix test (Elixir 1.13.x \| Erlang/OTP 22.x)	5m 28s
mix test (Elixir 1.13.x \| Erlang/OTP 23.x)	6m 1s
mix test (Elixir 1.13.x \| Erlang/OTP 24.x)	4m 1s
mix test (Elixir 1.13.x \| Erlang/OTP 25.x)	3m 30s
mix test (Elixir 1.14.x \| Erlang/OTP 23.x)	5m 44s
mix test (Elixir 1.14.x \| Erlang/OTP 24.x)	4m 11s
mix test (Elixir 1.14.x \| Erlang/OTP 25.x)	4m 7s
mix test (Elixir 1.15.x \| Erlang/OTP 24.x)	4m 13s
mix test (Elixir 1.15.x \| Erlang/OTP 25.x)	3m 44s
	1h 45m 3s

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