Add workaround for support of isAssociated

[Ivo-Yankov]

Problem

HIP 719 adds 3 new precompile methods, of which isAssociated() is defined as a view function. Thus it should be called via eth_call and the Relay will call the Mirror Node Web3 module to get the result. However the EVM in the Mirror node is not updated with the latest changes related to this HIP.

Solution

Add a temporary exception for this method only. When this method selector 0x4d8fdd6d is detected the relay should call Consensus instead of the Mirror node.

Alternatives

No response