bug fixes and minor updates

Release Notes:

• added a runner to double-click launch the game without any manual installation hassle. (see: PR #2)
• removed unnecessary dependencies and updated with the latest dependencies (resolved issue #1)

What's Changed

• add: runner by @mratanusarkar in #2

New Contributors

• @mratanusarkar made their first contribution in #2

Full Changelog: 1.0.0...1.0.1

Space Invaders v1.0.0

My implementation of the classic arcade game, Space Invaders.

In this release, the game is playable and is stable.
Level is fixed to 1 but the difficulty keeps on increasing with increase in kills and score.
The enemy (alien) keeps gaining speed with increase in difficulty and the objective is to keep killing it.

The game has sounds and displays scoreboard with performance parameters like fps and frame time.