Put citadel-boot in a separate package of citadel-tools

So that the citadel-boot binary can be installed in initramfs without
bringining in all the other citadel-tools and dependencies.

meta-citadel/recipes-citadel/packagegroups/packagegroup-citadel.bb

@@ -9,4 +9,5 @@ RDEPENDS_${PN} = "\
     packagegroup-theme \
     citadel-tools \
     citadel-tools-realms \
+    citadel-tools-boot \
 "

meta-citadel/recipes-core/citadel-tools/citadel-tools_0.1.0.bb

@@ -194,10 +194,11 @@ export SODIUM_USE_PKG_CONFIG = "1"
 
 DEPENDS = "libsodium openssl dbus gtk+3 glib-2.0"
 BBCLASSEXTEND = "native"
-PACKAGES =+ "${PN}-realms ${PN}-tools ${PN}-mkimage"
+PACKAGES =+ "${PN}-realms ${PN}-tools ${PN}-mkimage ${PN}-boot"
 
 FILES_${PN}-realms = "${bindir}/realms"
 FILES_${PN}-mkimage = "${bindir}/citadel-mkimage"
+FILES_${PN}-boot = "${libexecdir}/citadel-boot"
 
 FILES_${PN} = "\
     ${libexecdir}/citadel-tool \

meta-citadel/recipes-initrd/images/citadel-initramfs-image.bb

@@ -4,7 +4,7 @@ NO_RECOMMENDATIONS = "1"
 
 PACKAGE_INSTALL = "\
     citadel-initramfs \
-    citadel-tools \
+    citadel-tools-boot \
     cryptsetup \
     lvm2 \
     lvm2-udevrules \