Multiple tokens payment (GRC20) #101

Job	Run time
test (1.20.x, _test.flappy)	35s
build (1.20.x, amd64, linux, ./pkg/amino/cmd/aminoscan)	17s
test (1.20.x, _test.pkg.amino)	1m 53s
build (1.20.x, amd64, linux, ./pkg/amino/cmd/goscan)	13s
test (1.20.x, _test.pkg.bft)	21m 14s
build (1.20.x, amd64, linux, ./pkg/autofile/cmd)	21s
test (1.20.x, _test.pkg.others)	3m 0s
build (1.20.x, amd64, linux, ./pkg/iavl/cmd/iaviewer)	16s
test (1.21.x, _test.flappy)	34s
build (1.21.x, amd64, linux, ./pkg/amino/cmd/aminoscan)	25s
test (1.21.x, _test.pkg.amino)	1m 45s
build (1.21.x, amd64, linux, ./pkg/amino/cmd/goscan)	47s
test (1.21.x, _test.pkg.bft)	21m 14s
build (1.21.x, amd64, linux, ./pkg/autofile/cmd)	58s
build (1.21.x, amd64, linux, ./pkg/iavl/cmd/iaviewer)	13s
test (1.21.x, _test.pkg.others)	2m 57s
upload-coverage	0s
	56m 42s

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