This commit makes sure that the parser considers the git-repos field
mandatory for automated tests.

It also updates one test file with a new test definition using
git-repos.

Signed-off-by: Luis Araujo <luis.araujo@collabora.co.uk>

The new install:git-repos directive in the test case YAML files
will allow to clone the tests scripts in order to integrate the
test cases into LAVA.

This commit adapts the renderer to properly generate test case pages
with this new directive.

Signed-off-by: Luis Araujo <luis.araujo@collabora.co.uk>

This commit applies several changes in order to turn the
renderer code into a proper python module and command that
can be easily installed using the setuptools module.

Main changes:
- Main executable is named atc
- Use setuptools to install renderer executable
- Improve tests so they can be easily executed by packages
- Update README instructions

Signed-off-by: Luis Araujo <luis.araujo@collabora.co.uk>

Using exceptions offers a better interface for the parser to
report errors.

It also makes more convenient to test the parser code.

Signed-off-by: Luis Araujo <luis.araujo@collabora.co.uk>

Signed-off-by: Luis Araujo <luis.araujo@collabora.co.uk>

- Add the remaining test cases for tiny containers.
- Add a new image type: tiny-lxc
- Add new execution type: all

Signed-off-by: Luis Araujo <luis.araujo@collabora.co.uk>

Add the compatibility and performance test cases type to be recognized
by the parser.

Signed-off-by: Luis Araujo <luis.araujo@collabora.co.uk>

Keep the test case data format private in the parser module.

Signed-off-by: Luis Araujo <luis.araujo@collabora.co.uk>

This commit addes a parser for the test case format, so it can
detect the most common mistakes (missing field or incorrect types
for values) in the test case yaml file.

This commit also adds a few more ported test cases.

Signed-off-by: Luis Araujo <luis.araujo@collabora.co.uk>