chg the netcoreapp version of SQLitePCL.NativeLibrary to use the Load calls which take a library name instead of a library path.  with this change, using provider_dynamic with System.Runtime.InteropServices.NativeLibrary for netcoreapp3 works.  #248
chg the netcoreapp version of SQLitePCL.NativeLibrary to use the Load calls which take a library name instead of a library path.  with this change, using provider_dynamic with System.Runtime.InteropServices.NativeLibrary for netcoreapp3 works.  #248

PKRoma/SQLitePCL.raw,ericsink/SQLitePCL.raw