ReactiveSensors Versions Save

• updated Android CI config
• removed FUNDING.yml file
• fixed format in README.md
• updated Android CI badge in README.md
• added releasing guidelines
• updated checkout gh action from v2 to v3
• issue #99: bumped project dependencies, updated configuration, removed legacy support annotations dependency from the library, added new androidx support annotations to the library

• updated RxJava to 3.0.7
• updated Android Gradle Build Tools to 4.0.2

updated RxJava from 3.0.2 to 3.0.3

• made getters of ReactiveSensorEvent consistent: getAccuracy() -> accuracy()

• made getters of ReactiveSensorEvent consistent: getAccuracy() -> accuracy()

• fixed sonatype artifact release issues

• added new methods to ReactiveSensorEvent class: int sensorId(), String sensorName(), float[] sensorValues()

• added new methods to ReactiveSensorEvent class: int sensorId(), String sensorName(), float[] sensorValues()

• added SensorsProxy interface implemented by ReactiveSensors class to improve library integration and testability in external projects, which depend on it

• added SensorsProxy interface implemented by ReactiveSensors class to improve library integration and testability in external projects, which depend on it