#518)

all test passed.

…to prevent a spams (#519)

All test passed.

- remove calculation of pfm fee before request calculation of extra
birdge fee for channel and denom if exists
- fix a bug when send to fee account only one case when fee is less then
token amount. so it was a bug. fixed. now send coin always when fee is
less then token amount or equal.

Co-authored-by: dzmitry-lahoda <dzmitry@lahoda.pro>
Co-authored-by: kienn6034 <kien@notional.ventures>
Co-authored-by: rustdev <placex.com@gmail.com>
Co-authored-by: rust.dev <102041955+RustNinja@users.noreply.github.com>
Co-authored-by: kkast <kkastsevich@gmail.com>
Co-authored-by: Kanstantsin Kastsevich <kkast@users.noreply.github.com>
Co-authored-by: rjonczy <robert.jonczy@gmail.com>
Co-authored-by: tungle <anhletung@notional.ventures>

…-cosmos into rustninja/pmf-middleware

# Conflicts:
#	app/keepers/keepers.go
#	x/ibctransfermiddleware/keeper/keeper.go