chore: metrics collector - proposition - ON HOLD

[obecny]

Which problem is this PR solving?

• Based on
  metrics, add support for auto collecting default recommended metrics opentelemetry-js#623
  and
  Auto Metrics collector like micrometer.io for java opentelemetry-js#955

Short description of the changes

• Adds package to collect Metrics

FYI
Compiling packages works fine locally, compiling on circleCI and then installing from there is not yet done / wip

This is a proposition, naming conventions can be changed easily.

[obecny]

@mwear ^^

[codecov]

Codecov Report

Merging #36 into master will increase coverage by 0.42%.
The diff coverage is 97.63%.

@@            Coverage Diff             @@
##           master      #36      +/-   ##
==========================================
+ Coverage   94.32%   94.74%   +0.42%     
==========================================
  Files          57       54       -3     
  Lines        3295     3749     +454     
  Branches      351      396      +45     
==========================================
+ Hits         3108     3552     +444     
- Misses        187      197      +10     

Impacted Files	Coverage Δ
...es/opentelemetry-metrics-collector/src/stats/si.ts	88.88% <88.88%> (ø)
...pentelemetry-metrics-collector/src/stats/native.ts	90.00% <90.00%> (ø)
...ages/opentelemetry-metrics-collector/src/metric.ts	95.93% <95.93%> (ø)
...pentelemetry-metrics-collector/test/metric.test.ts	99.06% <99.06%> (ø)
...kages/opentelemetry-metrics-collector/src/cache.ts	100.00% <100.00%> (ø)
...ckages/opentelemetry-metrics-collector/src/enum.ts	100.00% <100.00%> (ø)
...pentelemetry-metrics-collector/src/stats/common.ts	100.00% <100.00%> (ø)
...ckages/opentelemetry-metrics-collector/src/util.ts	100.00% <100.00%> (ø)
node/opentelemetry-plugin-dns/src/version.ts
node/opentelemetry-plugin-redis/src/version.ts
... and 17 more

[dyladan]

"collector" name is potentially confusing with the opentelemetry collector

[vmarchaud]

Except the naming issue and my comment, i'm okay merging this as-is.
However in the long term i hope that we can provide a lightweight alternative without C++ addon (which is hard to maintain), most metrics are accesible anyway from javascript.
Also i'm not a fan of systeminformations because of it rely on .exec` which spawn process which is quite performance costly.

[vmarchaud]

I believe systeminformation is needed at runtime for network metrics.

[obecny]

I'm keeping this on hold, as it needs anyway refactoring due to changes in metrics which are still either in review or waits for those in review and then few new to be implemented

[obecny]

refactored in new PR