* lukas/erts/tracing/tracer-move-extra-to-map/OTP-10267:
  runtime_tools: Fix erl_tracer testcases
  runtime_tools: Fix documentation for dbg:p
  erts: Move tracer SecondTraceTerm to Opts map

The extra trace data has been moved to the opts map in order
for the tracer to be able to distinguish inbetween extra
trace data 'undefined' and no extra trace data. In the same
commit all opts associations have been changed so that if
the tracer should not use them, the key is left unassicated
instead of being sent to undefined. This should be give a
small performance gain and also makes the API easier to work
with.

When using an IP trace client, turn of all trace flags on the client
port to avoid massive overload. Note that this is only a protection on
client start - it is currently not possible to protect the port
against trace flags set at a later point in time.

* egil/runtime_tools/fix-unmatched_return/OTP-13595:
  runtime_tools: Fix unmatched return warnings

i.e enable all send/receive trace.

To set/clear match specs for send and receive trace.

'e' for Event as we might want to add match specs
for other trace events (proc exit,link,ulink,...).