SmrAccount: use const instead of static
SmrAccount: use const instead of static

Declare unchanging arrays of the `SmrAccount` class constant
instead of static to take advantage of OPcache compile-time
caching.

hemberger/smr,smrealms/smr,smrealms/smr,hemberger/smr,smrealms/smr,hemberger/smr,hemberger/smr