Added more benchmarks

[Razican]

We now have more benchmarks, and parsing benchmarks also take into
account lexing, since in the future, both will be done together.

I also changed a bit the structure of the benchmark files, so now it should be easier to understand. We have 3 files: lexer.rs, parser.rs and exec.rs, and each has its benchmarks.

I also upgraded and updated dependencies, so this should also fix #322.

[github-actions]

Benchmark for e7e3f15

Click to view benchmark

Test	PR Benchmark	Master Benchmark	%
Create Realm	368.3±22.82µs	381.0±56.58µs	97%
Expression (Lexer)	1730.9±126.64ns	undefined	100%
Expression (Parser)	4.1±0.33µs	2.8±0.22µs	145%
Fibonacci (Execution)	4.3±0.21ms	undefined	100%
For loop (Execution)	458.1±34.24µs	undefined	100%
For loop (Lexer)	4.5±0.34µs	undefined	100%
For loop (Parser)	12.7±1.04µs	undefined	100%
Hello World (Execution)	387.3±30.77µs	undefined	100%
Hello World (Lexer)	818.7±65.46ns	790.4±56.54ns	104%
Hello World (Parser)	2.0±0.20µs	1054.1±89.26ns	193%
Symbol Creation	475.7±42.73µs	undefined	100%
Symbol creation (Execution)	465.2±46.50µs	undefined	100%
fibonacci (Execution)	4.2±0.23ms	undefined	100%
	undefined	undefined	100%

[Razican]

I think this is ready, but this will require one PR to the gh-pages branch, to retroactively update the benchmark names, since I changed the names of the benchmarks to make them easier to understand and make them more standardized.