fix: Add missing package to build

Because I moved to `rust:alpine` it is necessary to add `musl-dev` so
the build works.

feat: Move code to blog

- Move most logic of the blog to blog.rs, making it easier to test.
- Now the file contains the creation date of the blog post to be parsed.
- Add chrono to parse datetime, so later we can order by date.
- Refactor gitlab pipeline, move `before_script` to a proper place.

feat: Add title parser

Add title parse so it yields a better post list.

fix(shasso): Fix code format

Remove whitespace.

feat: Add testing report

Add test report and make it a requiremnt for `production` stage.

Also revert all changes from picocss file. It will be refactored and
reduced after all the MVP is done.

ref: Add embded rust and router

- Use embed rust to load and resolve file from `content/post` folder, so
the whole process is a bit more dynamic.

- Add router to to resolve the path. It is the first step to try to get
the code a bit cleaner.

fix: Pick a broader address bind

Trying to fixe the following issue from Heroku:

> Error R10 (Boot timeout) -> Web process failed to bind to $PORT
> within 60 seconds of launch

fix: Change process type

Change heroku procfile process type to web so the process can receive
http requet through  `POST` envvar.

feat: Add heroku Procfile

feat: Add port env var

Now the port can be set through `PORT` enviroment variable, this is
useful for deploying on heroku.

fix: Update .gitlab-ci.yml file to install dpl

feat: Add .gitlab-ci.yml file

feat: Add embedded favicon

Add embedded base64 favicon

feat: Add early blog implementation

It is just a really crappy implementation to get it running until a
figure the pieces of the project out.

Initial commit