fix: prevent duplicated resource creation

[legendecas]

Which problem is this PR solving?

• According to https://github.com/open-telemetry/opentelemetry-specification/blob/master/specification/resource/sdk.md#resource-sdk, resource in MeterProvider/TracerProvider should be propagated to its meter and tracer.

Short description of the changes

• Prevent default resource re-creation in Meter/Tracer by propagating default resource in MeterProvider/TracerProvider.

[codecov-io]

Codecov Report

Merging #1015 into master will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #1015   +/-   ##
=======================================
  Coverage   95.00%   95.01%           
=======================================
  Files         212      212           
  Lines        8813     8827   +14     
  Branches      796      797    +1     
=======================================
+ Hits         8373     8387   +14     
  Misses        440      440           

Impacted Files	Coverage Δ
...ackages/opentelemetry-metrics/src/MeterProvider.ts	100.00% <100.00%> (ø)
...s/opentelemetry-metrics/test/MeterProvider.test.ts	100.00% <100.00%> (ø)
...s/opentelemetry-tracing/src/BasicTracerProvider.ts	75.75% <100.00%> (+0.75%)	⬆️
...telemetry-tracing/test/BasicTracerProvider.test.ts	100.00% <100.00%> (ø)

[dyladan]

We might be better off only saving the properties we need (like logger and resource) and not saving a _config property at all. It is unnecessary duplication.

[mayurkale22]

LGTM