Add logical operators

[Wertik]

Add && and || operators to rules.

This might lead to using a third party parser to handle more complex conditions. Just because I don't want to reinvent the wheel. Or maybe I'll do it for fun. But then it will most likely end up slow af?

[benlmyers]

Or perhaps check if a given placeholder is already a logical statement, and if so, allow us to check for true/false. For instance, check if '%vault_eco_balance% > $0' is TRUE as a placeholder, and display "can afford" as a result.