Populate resource attributes into process tags in Jaeger

[ThomsonTan]

Fixes #767

Changes

Current only service.name is set to Jaeger span, this PR populates all other resources attributes into tags in Jaeger process object.

For significant contributions please make sure you have completed the following items:

• CHANGELOG.md updated for non-trivial changes
• Unit tests have been added
• Changes in public API reviewed

[codecov]

Codecov Report

Merging #897 (cf3bdd0) into main (016bb85) will increase coverage by 0.03%.
The diff coverage is 93.34%.

@@            Coverage Diff             @@
##             main     #897      +/-   ##
==========================================
+ Coverage   95.38%   95.40%   +0.03%     
==========================================
  Files         158      158              
  Lines        6705     6717      +12     
==========================================
+ Hits         6395     6408      +13     
+ Misses        310      309       -1     

Impacted Files	Coverage Δ
...pi/include/opentelemetry/context/runtime_context.h	97.47% <66.67%> (ø)
sdk/test/trace/tracer_test.cc	99.48% <100.00%> (+0.02%)	⬆️
...include/opentelemetry/sdk/common/circular_buffer.h	100.00% <0.00%> (+2.09%)	⬆️

[lalitb]

LGTM, once the formatting is fixed.

[reyang]

LGTM.