[HIPIFY][fix] Stack Overflow possible Issues - Part 11 - FILE

[Synopsis]
+ Transformation maps reside in Stack and occupy up to `64kB` each of stack memory now
+ That leads to multiple compiler warnings about possible Stack Overflow

[Solution]
+ Move maps' initialization logic into a lambda. This prevents the compiler from creating a massive temporary array on the stack, which was the root cause of the "excessive stack usage" warning.

Author: emankov