implemented probability setting for bank account matching

[jaapjansma]

Current situation

When a transaction is matched by bank account this contact gets a probability of 100%. Meaning that in some matchers the transaction is matched with 100% certainity to this contact.
Sometimes this is not the desired situation.

For example in an organization where membership are stored on the household the individual might pay for the membership and as soon as the bank account is stored at the person level all other 'magic' disappears for identifying the household and the payment is recorded at the individual with 100% certainty and therefor the matcher is executed automatically.

Proposed solution

A setting where we can set the percentage for probability for bank account matching. In the above use case I am then able to lower the certainty so that automatic execution of those matches is prevented.

The setting is defaulted to 1.0 so when updating banking the current behavior is left as it is.

See below the screenshots of the setting screen and the matching screen

[bjendres]

Looks great! Maybe add an upgrader step to set it to 1.0.

[jaapjansma]

I have added an upgrader to set it to 1.0.

[bjendres]

@jaapjansma Cool, thanks. Should I merge then?

[jaapjansma]

Yes please do

[bjendres]

Thanks @jaapjansma !

[bjendres]

released with 0.8.0