Rename fields describing "icons in play"

[mmougy]

For clarification purpose, following fields should be renamed, because they are not particularly related to schemes (although an Acceleration and Crisis Icons are related to the main scheme)

• scheme_amplify
• scheme_acceleration
• scheme_crisis
• scheme_hazard

Those fields means that the current card adds 1 (or more) specific icon "in play"

Here is the description from the Rules Reference:

If this renaming is approved, it must also take place at the same time on the marvelsdb repo

this issue is related to:

• add amplify icon and support for scheme_amplify marvelsdb#266
• Add amplify icon and support for amplify card property marvelsdb#250
• Amplify Icon not displayed marvelsdb#196