Add custom ring implementation to the BatchProcessor

[MrAlias]

Part of #5063

The current queue implementation uses the built-in container/ring package for a ring implementation. This implementation stores its value as an any. Each time the batch processor stores a Record to this field it needs to be allocated to the heap to convert it to an any type.

This changes the implementation to be a paired-down ring with a Record as the value field. This removes the allocation and greatly improves the performance of the batch processor.

Benchmarks

goos: linux
goarch: amd64
pkg: go.opentelemetry.io/otel/sdk/log
cpu: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
                       │   old.txt    │               new.txt               │
                       │    sec/op    │   sec/op     vs base                │
BatchProcessorOnEmit-8   312.3n ± 18%   118.0n ± 5%  -62.22% (p=0.000 n=10)

                       │    old.txt    │                new.txt                │
                       │      B/s      │     B/s       vs base                 │
BatchProcessorOnEmit-8   1.264Gi ± 15%   3.347Gi ± 5%  +164.69% (p=0.000 n=10)

                       │  old.txt   │              new.txt              │
                       │    B/op    │   B/op    vs base                 │
BatchProcessorOnEmit-8   416.0 ± 0%   0.0 ± 0%  -100.00% (p=0.000 n=10)

                       │  old.txt   │               new.txt               │
                       │ allocs/op  │ allocs/op   vs base                 │
BatchProcessorOnEmit-8   1.000 ± 0%   0.000 ± 0%  -100.00% (p=0.000 n=10)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.6%. Comparing base (baeb560) to head (12d43fd).

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #5237   +/-   ##
=====================================
  Coverage   84.5%   84.6%           
=====================================
  Files        258     259    +1     
  Lines      17349   17384   +35     
=====================================
+ Hits       14676   14708   +32     
- Misses      2362    2365    +3     
  Partials     311     311           

Files	Coverage Δ
sdk/log/batch.go	99.4% <100.0%> (ø)
sdk/log/ring.go	100.0% <100.0%> (ø)

... and 2 files with indirect coverage changes

[pellared]

Just one minor comment that it would be nice to address.