Use semver compliant version in library.properties

[per1234]

Non-semver compliant version value causes the Arduino IDE to display warnings:

Invalid version found: dev

This can be especially confusing for users since the Arduino IDE doesn't say which library is the source of the problem.

References:

• https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5:-Library-specification#libraryproperties-file-format
• https://semver.org/

[sadika9]

Thank you