Adding new intent parameters with default values, added all parameters to adb.startApp, added test to satrt app with intent category, updated capabilities.md, updated sub-module appium-adb to point to v1.0.3 and updated package.json

Adding new capablities to caps.md and adding a test

Changes to test

Adding submodule appium-adb

Adding new intent parameters with default values, added all parameters to adb.startApp, added test to satrt app with intent category, updated capabilities.md, updated sub-module appium-adb to point to v1.0.3 and updated package.json