Split connection settings by types

[tigrannajaryan]

This changes splits connection settings by the type of the connection so that
each type has a corresponding message that records the appropriate data.

Implements spec change open-telemetry/opamp-spec#87

[codecov]

Codecov Report

Merging #82 (4e7024d) into main (afb132b) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main      #82   +/-   ##
=======================================
  Coverage   78.08%   78.08%           
=======================================
  Files          22       22           
  Lines        1720     1720           
=======================================
  Hits         1343     1343           
  Misses        283      283           
  Partials       94       94           

Impacted Files	Coverage Δ
client/internal/receivedprocessor.go	88.78% <ø> (ø)
client/types/callbacks.go	71.66% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update afb132b...4e7024d. Read the comment docs.