feat: add r/demo/atomicswap #6289

Job	Run time
setup	4s
Run Main (gnodev) / Go Build / generated	14s
Run Main (gnodev) / Go Linter / lint	28s
Run Main (gnodev) / Go Test / test	39s
Run Main (gnofaucet) / Go Build / generated	12s
Run Main (gnofaucet) / Go Linter / lint	28s
Run Main (gnofaucet) / Go Test / test	26s
Run Main (gnogenesis) / Go Build / generated	7s
Run Main (gnogenesis) / Go Linter / lint	20s
Run Main (gnogenesis) / Go Test / test	31s
Run Main (gnokeykc) / Go Build / generated	6s
Run Main (gnokeykc) / Go Linter / lint	21s
Run Main (gnokeykc) / Go Test / test	15s
Run Main (gnomd) / Go Build / generated	12s
Run Main (gnomd) / Go Linter / lint	25s
Run Main (gnomd) / Go Test / test	25s
Run Main (gnomigrate) / Go Build / generated	12s
Run Main (gnomigrate) / Go Linter / lint	23s
Run Main (gnomigrate) / Go Test / test	13s
	6m 1s

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