Consider whitelisting known EVM proxy contract storage locations

[kostko]

Specific storage locations (e.g. see EIP-1967) are used for proxy contract support. Given that allowing access to them should not disclose any sensitive information, we should consider allowing access to them via regular storage accessors.

Potential locations (before required EIP-1967 transformation):

eip1967.proxy.beacon
eip1967.proxy.implementation
eip1967.proxy.admin

Additional locations from ZeppelinOS (using a slightly different transformation):

org.zeppelinos.proxy.implementation
org.zeppelinos.proxy.admin