…and give it similar stuff. Add unit tests for it.

…the MsgMultiSend can now only contain a single input (#12610 and #12670).

…ing SendCoins to SendCoinsWithoutRestriction and create a new SendCoins that just applies the restriction then calls SendCoinsWithoutRestriction. Make restriction calls from InputOutputCoins too.

…ctions. It can be up to each restriction to decide if it should be bypassed.

…an be updated from inside the keeper without needing a pointer receiver.

…e the keeper AppendSendRestriction and PrependSendRestriction.

…estriction functions.

…iction functions.

# Conflicts:
#	x/bank/keeper/send.go

# Conflicts:
#	CHANGELOG.md
#	tests/integration/bank/keeper/keeper_test.go
#	x/bank/keeper/keeper_test.go
#	x/gov/testutil/expected_keepers_mocks.go

…comments.

# Conflicts:
#	CHANGELOG.md

# Conflicts:
#	CHANGELOG.md
#	x/bank/keeper/keeper_test.go

# Conflicts:
#	CHANGELOG.md
#	x/bank/keeper/keeper_test.go

# Conflicts:
#	CHANGELOG.md
#	tests/integration/bank/keeper/keeper_test.go
#	x/bank/README.md
#	x/bank/keeper/keeper_test.go
#	x/bank/keeper/send.go
#	x/gov/testutil/expected_keepers_mocks.go

# Conflicts:
#	CHANGELOG.md
#	x/bank/keeper/send.go

# Conflicts:
#	CHANGELOG.md

…that.

…pes package so it's easier for other modules to create expected keepers for them.

…per since it's specific to the keeper and a bit confusing to have right next to the SendRestrictionFn.

# Conflicts:
#	CHANGELOG.md
#	tests/integration/bank/keeper/keeper_test.go
#	x/bank/README.md
#	x/bank/keeper/keeper.go
#	x/bank/keeper/keeper_test.go
#	x/bank/keeper/send.go
#	x/gov/testutil/expected_keepers_mocks.go

# Conflicts:
#	CHANGELOG.md
#	tests/integration/bank/keeper/keeper_test.go

…edCoins so that it a) more closely refelects InputOutputCoins, and b) does the most common failure thing first.

… restiction check in SendCoins.

# Conflicts:
#	CHANGELOG.md

# Conflicts:
#	CHANGELOG.md

# Conflicts:
#	CHANGELOG.md