Performant AES Implementation

Variant	Time for 1 mio. Iterations	Time for 10 mio. Iterations	Processor	OS	Compiler	Compiler Switches
`aes-32bit`	3163ms	4632ms	Intel i7-8650U	Arch Linux x86_64	`gcc`	`-g`
`aes-32bit`	482ms	5152ms	Intel i7-8650U	Arch Linux x86_64	`gcc`	`-Ofast`
`aes-tboxes`	203ms	1708ms	Intel i7-8650U	Arch Linux x86_64	`gcc`	`-g`
`aes-tboxes`	148ms	1600ms	Intel i7-8650U	Arch Linux x86_64	`gcc`	`-Ofast`