gst-plugins: partially sync packaging with OE .dev

gst-plugins: partially sync packaging with OE .dev

Gst-plugins get 2 extra packages:

${PN}-apps: helper apps in ${bindir}
${PN}-meta: meta package that will drag in all plugins, libs and apps ${PN} generates

And all libs are split out and run through debian style renaming if enabled.

The packaging include was split out to be reused by external plugins (e.g. gst-plugin-gl, gst-fluendo-*).

The new package list looks like:

libgstapp-0.10-0_0.10.32-r1_armv7a.ipk
libgstfft-0.10-0_0.10.32-r1_armv7a.ipk
[..]
gst-plugins-base-videorate_0.10.32-r1_armv7a.ipk
gst-plugins-base-videoscale_0.10.32-r1_armv7a.ipk
[..]
gst-plugins-base-meta_0.10.32-r1_armv7a.ipk
[..]
gst-plugins-base-apps_0.10.32-r1_armv7a.ipk

(From OE-Core rev: 4bfd595934c1f6839ae848b09ecca439d92bf014)

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>