Nisyscfg

Bug Fixes
- Fixed library loading issue on Linux (58)

Breaking Changes
- Updated minimum Python version to 3.7 and dropped PyPy3 suppport (49)
- Changed pxi bitmask enums to enum.IntFlag (51)

Improvements
- Added pxi property CHASSIS_LED_BLINK_PATTERN (50)
- Added self_calibrate to HardwareResource (54)

Improved Documentation
- Fixed typo in README example (56)

Trivial/Internal Changes
- Cleaned up formatting (44)
- Normalized files to have unix line-endings (45)
- Added action to test building nisyscfg wheel (46)

- Fixed c_type for item_type in component_info.py (40)
- Updated xnet properties and fixed handling of timestamp properties (41)

* Fixed support for setting system resource properties
* Added missing variables to LibraryWarning

* Renamed SYS_CFG_ACCESS property to SYSTEM_CONFIGURATION_WEB_ACCESS
* Added Python 3.9 and 3.10 to supported versions list

* Fixed support for Python 3.5
* Reworked IndexedPropertyItems to access properties without querying count property