[Java Harness] Improve heap dump support by configuring JVM to dump heap on OOM exceptions

[scwhittle]

This configures the boot script to use JVM flags so that it dumps heaps to a directory that the MemoryMonitor will look in.

Other improvements are made to:

• allow configuring remote upload location separately from tempLocation
• add default-on support to gzip uploads to speed them up

These changes were tested with a manual dataflow test with a pipeline that leaked memory. I confirmed that files were successfully dumped by the JVM and then uploaded. Unzipping and loading the hprof files in VisualVM was successful in identifying the objects pinning memory and leading to OOMs.

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Codecov Report

Attention: Patch coverage is 0% with 7 lines in your changes missing coverage. Please review.

Project coverage is 54.49%. Comparing base (de76cfa) to head (5d3b011). Report is 26 commits behind head on master.

Files with missing lines	Patch %	Lines
sdks/java/container/boot.go	0.00%	7 Missing :warning:

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #32953      +/-   ##
============================================
- Coverage     54.50%   54.49%   -0.01%     
+ Complexity     1479     1470       -9     
============================================
  Files          1017     1017              
  Lines        160983   160780     -203     
  Branches       1079     1078       -1     
============================================
- Hits          87737    87614     -123     
+ Misses        71140    71056      -84     
- Partials       2106     2110       +4     

Flag	Coverage Δ
go	28.20% <0.00%> (+<0.01%)	:arrow_up:

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[scwhittle]

R: @Abacn

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[scwhittle]

R: @kennknowles

[scwhittle]

@kennknowles back to you . Sorry I rebased on accident and broke the diff view.