chore: add contract-contract interation with ownership example #2676

Job	Run time
build (1.20.x, GOARCH=amd64 GOOS=linux, gno)	27s
build (1.20.x, GOARCH=wasm GOOS=js, gno)	31s
test (1.20.x, _test.cmd)	1m 8s
build (1.21.x, GOARCH=amd64 GOOS=linux, gno)	22s
build (1.21.x, GOARCH=wasm GOOS=js, gno)	27s
test (1.20.x, _test.pkg)	48s
test (1.20.x, _test.gnolang.native)	38s
test (1.20.x, _test.gnolang.stdlibs)	57s
test (1.20.x, _test.gnolang.realm)	42s
test (1.20.x, _test.gnolang.pkg0)	1m 48s
test (1.20.x, _test.gnolang.pkg1)	6m 25s
test (1.20.x, _test.gnolang.pkg2)	4m 14s
test (1.20.x, _test.gnolang.other)	31s
test (1.21.x, _test.cmd)	1m 9s
test (1.21.x, _test.pkg)	50s
test (1.21.x, _test.gnolang.native)	35s
test (1.21.x, _test.gnolang.stdlibs)	1m 1s
test (1.21.x, _test.gnolang.realm)	33s
test (1.21.x, _test.gnolang.pkg0)	1m 36s
test (1.21.x, _test.gnolang.pkg1)	6m 9s
test (1.21.x, _test.gnolang.pkg2)	4m 5s
test (1.21.x, _test.gnolang.other)	31s
upload-coverage	20s
	35m 47s

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