Add NTRIP Examples

Fix #17

Add E6/HAS compatibility and isConfigurationPresent()

HAS significantly increases the accuracy of reception. See issue 281 on RTK Everywhere repo.

Increase command buffer for PPS commands

v1.0.3

Update library.properties

Add isBlocking()

v1.0.2

Update library.properties

Use SEMP. Retry unlog during disable output.

• Now uses SparkFun Extensible Message Parser for better parsing
• Update examples with SEMP
• Change disableOutput() to retry 'unlog'

Initial release

v1.0.0

Add support for getVersion, getModelType, getID, getCompileTime.