BREAKING CHANGE: remove btool and replace it with splunk.rest #1035

Job	Run time
pre-commit	22s
fossa-scan	40s
compliance-copyrights	25s
meta	5s
test-unit 3.7	2m 52s
test-unit 3.8	1m 36s
test-unit 3.9	1m 35s
test-unit 3.10	2m 27s
test-unit 3.11	1m 35s
test-unit 3.12	1m 49s
test-unit 3.13	1s
semgrep / sast-scan	28s
test-splunk (9.4.0, 6b4ebe426ca6, true, false)	2m 54s
test-splunk (9.3.2, d8bb32809498, false, false)	3m 48s
test-splunk (9.2.4, c103a21bb11d, false, false)	4m 17s
test-splunk (9.1.7, e17104057ef0, false, true)	4m 15s
publish	0s
	29m 9s

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