Port copy operator

[Mrod1598]

Description of Changes

Ported the copy operator from the decomposition of the restructure operator discussed here: OpenTelementry#68.

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

[djaglowski]

Log Files	Logs / Second	CPU Avg (%)	CPU Avg Δ (%)	Memory Avg (MB)	Memory Avg Δ (MB)
1	1000	1.517267	+0.086159945	123.46471	-1.5402756
1	5000	5.069	-0.22423983	132.36813	+0.6053314
1	10000	10.534681	+0.05178833	140.22589	-1.613678
1	50000	49.414505	-1.9135361	168.88281	-3.4187775
1	100000	101.15273	+0.7429428	244.03624	-1.515213
10	100	1.9137586	-0.051844478	130.04822	+1.9942017
10	500	6.310247	+0.1722455	135.76819	+2.300644
10	1000	11.603522	-0.22446632	141.71605	-0.9181061
10	5000	56.207355	-0.5174866	184.31479	+4.580017
10	10000	107.20577	+1.0642929	219.5594	-4.530304

[codecov]

Codecov Report

Merging #278 (cdf9121) into master (dbd2f09) will decrease coverage by 0.04%.
The diff coverage is 63.16%.

@@            Coverage Diff             @@
##           master     #278      +/-   ##
==========================================
- Coverage   70.63%   70.59%   -0.04%     
==========================================
  Files         114      115       +1     
  Lines        6027     6046      +19     
==========================================
+ Hits         4257     4268      +11     
+ Misses       1322     1321       -1     
- Partials      448      457       +9     

Impacted Files	Coverage Δ
operator/builtin/transformer/copy/copy.go	63.16% <63.16%> (ø)
operator/builtin/input/tcp/tcp.go	66.67% <0.00%> (-4.76%)	⬇️
operator/flusher/flusher.go	84.00% <0.00%> (-4.00%)	⬇️
operator/builtin/output/newrelic/newrelic.go	71.03% <0.00%> (-0.93%)	⬇️
operator/builtin/output/forward/forward.go	56.52% <0.00%> (+1.45%)	⬆️
operator/builtin/input/file/file.go	76.03% <0.00%> (+2.05%)	⬆️
operator/builtin/output/otlp/otlp.go	65.43% <0.00%> (+3.70%)	⬆️

---

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[djaglowski]

Needs to be added to init_common.go

[djaglowski]

Log Files	Logs / Second	CPU Avg (%)	CPU Avg Δ (%)	Memory Avg (MB)	Memory Avg Δ (MB)
1	1000	1.3793133	-0.20690298	124.81964	+3.2000275
1	5000	4.8448653	-0.24154663	133.78973	+0.37580872
1	10000	10.810635	+0.37926865	141.22832	+1.4151459
1	50000	51.053776	+2.4496613	173.20663	+1.4455872
1	100000	106.60752	+10.060059	237.53745	+2.2064972
10	100	2.0518165	-0.051678658	128.77316	+0.65597534
10	500	6.241093	+0.4305668	137.8657	+1.6773987
10	1000	12.2930975	+0.01702404	141.92188	+0.104522705
10	5000	57.604378	-1.450943	184.48047	+5.0429688
10	10000	106.53511	-2.9125671	220.20676	-11.047287

[djaglowski]

Log Files	Logs / Second	CPU Avg (%)	CPU Avg Δ (%)	Memory Avg (MB)	Memory Avg Δ (MB)
1	1000	1.603458	-0.03447056	124.72832	-1.3413239
1	5000	5.482732	+0.534328	132.90881	-3.4089355
1	10000	10.63837	+0.17281532	137.19437	-3.6677094
1	50000	49.5695	+1.6236382	168.29944	-1.9325104
1	100000	99.822105	+5.1144333	239.09819	+5.6578674
10	100	1.9483058	-0.46560693	128.89629	-1.0236969
10	500	6.241528	-0.17256355	137.96983	+0.4993286
10	1000	11.741637	-0.13770294	142.53569	+1.7512054
10	5000	55.672974	+6.997181	182.1421	+0.13806152
10	10000	103.595825	-2.8392105	208.67525	-13.643723

[djaglowski]

Log Files	Logs / Second	CPU Avg (%)	CPU Avg Δ (%)	Memory Avg (MB)	Memory Avg Δ (MB)
1	1000	1.7241694	+0.08624077	126.76899	+0.69934845
1	5000	5.396597	+0.44819307	132.60184	-3.7159119
1	10000	10.569178	+0.10362339	141.33513	+0.47305298
1	50000	51.05055	+3.1046867	172.44101	+2.2090607
1	100000	98.96789	+4.2602158	237.31007	+3.869751
10	100	1.9138293	-0.50008345	126.71094	-3.2090454
10	500	6.275981	-0.13811064	139.47374	+2.0032349
10	1000	12.431404	+0.55206394	141.49542	+0.7109375
10	5000	56.01252	+7.336727	181.04257	-0.96147156
10	10000	107.27504	+0.84000397	227.2411	+4.9221344