Create Balloon

### What's New in 1.0.7p2 - **WASD directional control** — controller supports W (forward), S (back), A (turn left), D (turn right) in addition to Space (ascend) and V (descend). Like Valkyrien Skies / Eureka. - **Config organized** — sections for Lift, Gyroscope, Movement, Debug with usage warnings. - **gyroStrength** config — adjust stabilization strength (0.1-5.0, default 1.5). Warning: >2.0 may cause instability. - **moveSpeed / turnSpeed** config — horizontal speed (default 1.0) and rotation speed (default 0.5). Warning: turnSpeed >1.0 may cause uncontrollable spinning. - **Controller also acts as CC:Tweaked peripheral** — place computer next to controller (not just balloon) to control all balloons on the structure. - **CC:Tweaked API expanded** — `forward()`, `back()`, `turnLeft()`, `turnRight()` added. - **baseKpg** marked "not recommended to change" — empirically tuned for Sable.

CC:Tweaked Usage

``` -- Place computer next to a balloon block or controller block local b = peripheral.find("balloon") -- Vertical b.ascend() -- rise b.descend() -- fall b.hover() -- hold altitude -- Horizontal b.forward() -- go (controller facing direction) b.back() -- reverse -- Rotation b.turnLeft() -- rotate counter-clockwise b.turnRight() -- rotate clockwise -- Stop & info b.stop() -- stop all movement b.count() -- balloon count on structure b.isActive() -- whether any control is active