allow unit-style amounts in value field of FunctionCallDefinition #387
Description
Is your feature request related to a problem? Please describe.
when writing a scenario with a value declaration, I want to be able to write "1 eth" instead of 1000000000000000000
Describe the solution you'd like
Use something similar to parse_amount to parse value for FunctionCallDefinition and FunctionCallDefinitionStrict, but allow unit-less values (interpret bare integers as wei).
value should also be changed to an Option<U256> for FunctionCallDefinitionStrict, not sure why it isn't already