BREAKING CHANGE: remove btool and replace it with splunk.rest #1045

Job	Run time
compliance-copyrights	29s
fossa-scan	45s
pre-commit	23s
meta	9s
test-unit 3.7	2m 59s
test-unit 3.8	1m 47s
test-unit 3.11	1m 32s
test-unit 3.10	1m 35s
test-unit 3.12	1m 45s
test-unit 3.13	1m 51s
test-unit 3.9	1m 33s
semgrep / sast-scan	25s
test-splunk (9.3.2, d8bb32809498, false, false)	4m 24s
test-splunk (9.2.4, c103a21bb11d, false, false)	4m 29s
test-splunk (9.4.0, 6b4ebe426ca6, true, false)	3m 37s
test-splunk (9.1.7, e17104057ef0, false, true)	4m 33s
publish	2m 6s
	34m 22s

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