vol2bird 0.5.0.9167

[adokter]

• hotfix of issue incorrect read of nyquist velocity and range resolution for specific NEXRAD files #166, causing incorrect read of range resolution and incorrect projection of data in the range dimension for specific NEXRAD files (361b18b)
• issue incorrect read of nyquist velocity and range resolution for specific NEXRAD files #166 also fixes occasional incorrect read of Nyquist velocity for sweeps where reflectivity and radial velocity parameters are collected at a different PRF and Nyquist velocity (361b18b)
• new hard-coded option MISTNET_REQUIRE_DBZ added to lib/constants.h. When set to 1 mistnet renderings of radial velocity and spectrum width require a corresponding valid reflectivity value. default 0
• partial fix of issue reduce compiler warnings #165 to reduce compiler warnings (e5f3114)
• fix C++ libmistnet build. Libtorch library changed to C++ standard 14 (used to be 11). As a result CMakeLists.txt had to be updated. NOTE: Libtorch compilation on Mac OSX is not yet compatibile with recent XCode / command line tools version 12. Compilation only succeeds with version 11.X (as of Nov 23 2020) (101c59f)
• Cartesian objects in vol2bird (related to mistnet rendering) now maintain the NODATA and UNDETECT attributes / Rave data type (0d70237)