feat(yaml-config): adding yaml parsing of yaml config file + tests an…

[Ant0wan]

Adding:

• serde-yaml parsing from config.yaml
• config files and default Config testings
• basic error handling

Fixes #10

[pscott]

@Ant0wan if you want to close / fix issues, make sure you insert a space after the key word. Ex: Fixes #10 or Closes #10

[Ant0wan]

Hi Scott, I am just going to add some tests for the parsing and resolve conflicting files and then we are good to go I believe.

[Ant0wan]

Last test to fix, and we are all good with configuration file parsing ! :-)

[Ant0wan]

We are good to go now :-D