Using some fixed size arrays

[Lol3rrr]

Problem

Right now all strings are dynamically allocated, this is the best option for memory consumption as it only uses what it actually needs. However from a performance point this is not the best, as you mostly try to reduce the amount of memory you allocate at runtime and especially for short strings it's honestly kind of a waste.

Solution

For certain things, there should be fixed size arrays.
One good example is the Request-Method as this has only a couple of options and even the worst case scenario only wastes a couple of bytes, so no big deal.
This however should help to keep the allocations lower and overall removes one problem that needs to be managed with that dynamic memory.

[Lol3rrr]

Added all the Fixed size array stuff for the Method in this commit