gplugin/gplugin

04f8758f9a72
Add the ability to disable the native plugin loader

Add support for the ability to disable the native plugin loader. This is primarily a debug tool right now. Fixes GPLUGIN-103

Testing Done:
Built and ran the unit tests locally.

Reviewed at https://reviews.imfreedom.org/r/110/
option(
'doc',
type : 'boolean', value : true, yield : true,
description : 'build documentation with gtk-doc'
)
option(
'introspection',
type : 'boolean', value : true, yield : true,
description : 'Whether or not to build a GObject Introspection type library'
)
option(
'gtk3',
type : 'boolean', value : true,
description : 'Whether or not to build the gtk3 library'
)
option(
'help2man',
type : 'boolean', value : true,
description : 'Whether or not to build man pages from --help output'
)
option(
'lua',
type : 'boolean', value : true,
description : 'Whether or not to build the Lua plugin loader'
)
option(
'nls',
type : 'boolean', value : true,
description : 'Install translation files'
)
option(
'perl5',
type : 'boolean', value : true,
description : 'Whether or not to build the Perl plugin loader'
)
option(
'python3',
type : 'boolean', value : true,
description : 'Whether or not to build the Python 3.x plugin loader'
)
option(
'tcc',
type : 'boolean', value : false,
description : 'Whether or not to build the TCC plugin loader'
)
option(
'vapi',
type : 'boolean', value : true,
description : 'Whether or not to build vapi files for gplugin'
)