Convert legacy docker tests from bash to golang #1608

Job	Run time
Build Go Tests	38s
build / Build	6m 51s
Docker Tests In GO (basics)	57s
Docker Tests In GO (bootstraptoken)	52s
Docker Tests (basics)	1m 6s
E2E Tests (startup)	9m 56s
Docker Tests In GO (cacerts)	1m 3s
Docker Tests (bootstraptoken)	48s
E2E Tests (s3)	7m 49s
Docker Tests In GO (etcd)	1m 52s
Docker Tests (cacerts)	45s
E2E Tests (btrfs)	4m 34s
Docker Tests In GO (lazypull)	56s
Docker Tests (compat)	2m 23s
E2E Tests (externalip)	4m 26s
Docker Tests In GO (skew)	1m 59s
Docker Tests (lazypull)	47s
E2E Tests (privateregistry)	5m 26s
Docker Tests (upgrade)	2m 22s
Docker Tests In GO (upgrade)	1m 32s
E2E Tests (embeddedmirror)	5m 39s
E2E Tests (wasm)	4m 1s
	1h 6m 42s

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