Add compression support

[camdencheek]

Description of Changes

Adds compression support to the Google Cloud Output.

Also increases the timeout for write calls and reduces the handler limit to reduce contention for network resources.

Please check that the PR fulfills these requirements

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)
• Add a changelog entry (for non-trivial bug fixes / features)
• CI passes

[codecov]

Codecov Report

Merging #86 into master will decrease coverage by 0.02%.
The diff coverage is 75.00%.

@@            Coverage Diff             @@
##           master      #86      +/-   ##
==========================================
- Coverage   74.14%   74.12%   -0.02%     
==========================================
  Files          67       67              
  Lines        4045     4049       +4     
==========================================
+ Hits         2999     3001       +2     
- Misses        790      793       +3     
+ Partials      256      255       -1     

Impacted Files	Coverage Δ
operator/builtin/output/google_cloud.go	41.81% <71.43%> (+0.14%)	⬆️
operator/buffer/buffer.go	80.00% <100.00%> (ø)
operator/builtin/input/file/read_to_end.go	59.70% <0.00%> (-2.99%)	⬇️
operator/builtin/input/tcp.go	79.17% <0.00%> (+2.78%)	⬆️

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[djaglowski]

Log Files	Logs / Second	CPU Avg (%)	CPU Avg Δ (%)	Memory Avg (MB)	Memory Avg Δ (MB)
1	1000	2.9828258	-0.44835377	27.034887	-1.5230331
1	5000	7.7415905	-0.4310627	41.65019	+1.5343475
1	10000	14.603746	+0.24137211	53.191944	-0.25444412
1	50000	56.5999	-1.4825096	194.21013	+24.897629
1	100000	108.86462	+0.31905365	296.98978	+13.574646
10	100	4.72421	-0.034507275	27.45474	-0.2385521
10	500	9.845065	-0.120625496	38.44639	+0.9277992
10	1000	16.879932	+0.65540314	50.616512	-1.8305511
10	5000	63.896656	+0.05116272	190.16743	+23.185211
10	10000	122.18321	+5.5409393	333.67053	+16.24057

[djaglowski]

Log Files	Logs / Second	CPU Avg (%)	CPU Avg Δ (%)	Memory Avg (MB)	Memory Avg Δ (MB)
1	1000	3.1207786	-0.13792253	28.138874	+0.90153503
1	5000	7.7932086	+0.15513277	39.49313	-1.3228722
1	10000	13.965798	+0.08614349	52.639816	-1.396553
1	50000	60.9853	-1.2012253	187.88321	-3.8834991
1	100000	109.72072	-0.7491455	272.99274	+7.5849915
10	100	5.7070365	+1.4483466	29.130522	-0.20770645
10	500	10.120911	+0.05175495	40.652073	+0.5786629
10	1000	16.414215	+0.17245865	50.505928	-1.4353447
10	5000	65.1638	+2.8003273	163.68346	-18.401001
10	10000	117.101555	+1.3749237	299.5621	-30.465637