libgnt/libgnt

Update our python searching since not every distro ships a python3-embed.pc file

2021-07-23, Gary Kramlich
9c90f958a2d5
Update our python searching since not every distro ships a python3-embed.pc file

Testing Done:
compiled

Reviewed at https://reviews.imfreedom.org/r/833/
option('doc', type : 'boolean', value : true, yield : true,
description : 'build documentation with gtk-doc')
option('introspection', type : 'boolean', value : true, yield : true,
description : 'build introspection data')