Packaging tweaks, rebuild CI deps

Signed-off-by: falkTX <falktx@falktx.com>

utils/macOS/package.xml.in

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8" standalone="no"?>
+<installer-gui-script minSpecVersion="1">
+    <title>Cardinal</title>
+    <domains enable_anywhere="false" enable_currentUserHome="false" enable_localSystem="true" />
+    <license file="@builddir@/../LICENSE" mime-type="text/plain" />
+    <options customize="always" hostArchitectures="x86_64" require-scripts="false" rootVolumeOnly="true" />
+    <pkg-ref id="studio.kx.distrho.cardinal" />
+    <welcome file="@builddir@/../utils/macOS/welcome.txt" mime-type="text/plain" />
+    <choice id="studio.kx.distrho.cardinal-res" title="Resources" description="Install resources" visible="false">
+        <pkg-ref id="studio.kx.distrho.cardinal-resources" version="0">dpf-cardinal-resources.pkg</pkg-ref>
+    </choice>
+    <choice id="studio.kx.distrho.cardinal-au" title="AU" description="Install AU plugins" visible="true">
+        <pkg-ref id="studio.kx.distrho.cardinal-components" version="0">dpf-cardinal-components.pkg</pkg-ref>
+    </choice>
+    <choice id="studio.kx.distrho.cardinal-lv2" title="LV2" description="Install LV2 plugins" visible="true">
+        <pkg-ref id="studio.kx.distrho.cardinal-lv2bundles" version="0">dpf-cardinal-lv2bundles.pkg</pkg-ref>
+    </choice>
+    <choice id="studio.kx.distrho.cardinal-vst2" title="VST2" description="Install VST2 plugins" visible="true">
+        <pkg-ref id="studio.kx.distrho.cardinal-vst2bundles" version="0">dpf-cardinal-vst2bundles.pkg</pkg-ref>
+    </choice>
+    <choice id="studio.kx.distrho.cardinal-vst3" title="VST3" description="Install VST3 plugins" visible="true">
+        <pkg-ref id="studio.kx.distrho.cardinal-vst3bundles" version="0">dpf-cardinal-vst3bundles.pkg</pkg-ref>
+    </choice>
+    <choices-outline>
+        <line choice="studio.kx.distrho.cardinal-res"/>
+        <line choice="studio.kx.distrho.cardinal-au"/>
+        <line choice="studio.kx.distrho.cardinal-lv2"/>
+        <line choice="studio.kx.distrho.cardinal-vst2"/>
+        <line choice="studio.kx.distrho.cardinal-vst3"/>
+    </choices-outline>
+</installer-gui-script>

utils/macOS/welcome.txt

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+Cardinal is a free and open-source virtual modular synthesizer plugin.
+It is based on the popular VCV Rack but with a focus on being a fully self-contained plugin version.
+
+Cardinal provides 3 plugin variants - "main", Synth and FX.
+They are all equivalent in performance and behaviour, with only the IO and metadata that changes.
+
+FX and Synth variants both have 2 audio outputs, while "main" has 8.
+All variants have MIDI input and output support.
+
+This package provides the AU, LV2, VST2 and VST3 audio plugins for macOS.
+
+Notes:
+ - Due to AU and VST2 not supporting CV ports, the main variant is not available for these formats.
+ - The VST3 version is in progress, already part of the build but still experimental.