Bound default buffer size and add decompression limits

[deirdresama]

• Default maximumBufferSize to 100 MB (was effectively unbounded)
• Add decompression size limits for GZIP streams
• Enforce maximumBufferSize in text-reader path
• Add API to disable GZIP auto-decompression

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

❌ Patch coverage is 74.71264% with 22 lines in your changes missing coverage. Please review.
✅ Project coverage is 68.07%. Comparing base (3c1b6b1) to head (002fc51).
⚠️ Report is 148 commits behind head on master.

Files with missing lines	Patch %	Lines
...om/amazon/ion/util/LimitedInflaterInputStream.java	45.45%	10 Missing and 2 partials ⚠️
...com/amazon/ion/impl/_Private_IonReaderFactory.java	40.00%	4 Missing and 2 partials ⚠️
...n/java/com/amazon/ion/system/IonReaderBuilder.java	91.30%	1 Missing and 1 partial ⚠️
...in/java/com/amazon/ion/IonBufferConfiguration.java	50.00%	0 Missing and 1 partial ⚠️
...com/amazon/ion/impl/_Private_IonReaderBuilder.java	90.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1152      +/-   ##
============================================
+ Coverage     67.23%   68.07%   +0.84%     
- Complexity     5484     5653     +169     
============================================
  Files           159      161       +2     
  Lines         23025    23363     +338     
  Branches       4126     4189      +63     
============================================
+ Hits          15481    15905     +424     
+ Misses         6262     6162     -100     
- Partials       1282     1296      +14     

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