Deprecate MeterProvider#get(..) methods

[jack-berg]

In PR #3759 there was a comment about removing the SdkLogEmitterProvider#get(...) methods which are made obsolete by SdkLogEmitterProvider#logEmitterBuilder(..).

The same is true for the MeterProvider#get(..). This PR marks them as deprecated and changes all usages to MeterProvider#meterBuilder(..).

[codecov]

Codecov Report

Merging #3812 (9d63084) into main (1f22239) will decrease coverage by 0.02%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##               main    #3812      +/-   ##
============================================
- Coverage     89.22%   89.20%   -0.03%     
- Complexity     4010     4041      +31     
============================================
  Files           481      486       +5     
  Lines         12430    12524      +94     
  Branches       1207     1221      +14     
============================================
+ Hits          11091    11172      +81     
- Misses          926      935       +9     
- Partials        413      417       +4     

Impacted Files	Coverage Δ
...va/io/opentelemetry/api/metrics/MeterProvider.java	33.33% <ø> (-66.67%)	⬇️
...io/opentelemetry/sdk/metrics/SdkMeterProvider.java	82.75% <ø> (ø)
.../metrics/internal/descriptor/MetricDescriptor.java	90.90% <0.00%> (-9.10%)	⬇️
...emetry/api/baggage/propagation/PercentEscaper.java	79.69% <0.00%> (-4.52%)	⬇️
...metry/sdk/metrics/export/PeriodicMetricReader.java	81.66% <0.00%> (-3.34%)	⬇️
.../exporter/otlp/internal/okhttp/OkHttpExporter.java	85.24% <0.00%> (-1.43%)	⬇️
...n/java/io/opentelemetry/sdk/metrics/view/View.java	100.00% <0.00%> (ø)
...nternal/state/DuplicateMetricStorageException.java	100.00% <0.00%> (ø)
.../incubator/trace/ExecutorServiceSpanProcessor.java	91.96% <0.00%> (ø)
... and 13 more

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[ghost]

Agree with leaving default, simple Meter get(name).