avocado.test: Add get_deps_path() method to Test

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
Add avocado.utils.build library

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
tests: Add synctest

synctest is a simple test wrapper for the synctest test
suite. It's an example of suite compilation and execution.

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
.gitignore: Updating ignored files

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>