[gimp] meson: add a special target `install-libgimp*` for all libgimp*.

[Jehan <jehanp src gnome org>]

commit 1046430df135a64fc11f50bbc0cb291143e3caa8
Author: Jehan <jehan girinstud io>
Date:   Sat Oct 12 11:50:19 2019 +0200

    meson: add a special target `install-libgimp*` for all libgimp*.
    
    For instance, we can install libgimpwidgets with:
    > ninja install-libgimpwidgets
    
    A special target had been previously added only for libgimp.

 meson.build | 7 +++++++
 1 file changed, 7 insertions(+)
---
diff --git a/meson.build b/meson.build
index 1cb0203307..5f7891639b 100644
--- a/meson.build
+++ b/meson.build
@@ -1619,6 +1619,13 @@ pkgconfig.generate(libgimpui,
 
 foreach dir : [
     { 'dir': 'libgimp',   'deps': libgimp},
+    { 'dir': 'libgimpbase',   'deps': libgimpbase},
+    { 'dir': 'libgimpcolor',   'deps': libgimpcolor},
+    { 'dir': 'libgimpconfig',   'deps': libgimpconfig},
+    { 'dir': 'libgimpmath',   'deps': libgimpmath},
+    { 'dir': 'libgimpmodule',   'deps': libgimpmodule},
+    { 'dir': 'libgimpthumb',   'deps': libgimpthumb},
+    { 'dir': 'libgimpwidgets',   'deps': libgimpwidgets},
     { 'dir': 'plug-ins', },
   ]
   run_target('install-' + dir.get('dir'),