Add Upbound Universal Crossplane

Signed-off-by: Hasan Turken <turkenh@gmail.com>

packages/universal-crossplane/overlay/app-readme.md

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+# Upbound Universal Crossplane (UXP)
+
+Upbound Universal Crossplane (UXP) is [Upbound's](https://upbound.io) official
+enterprise-grade distribution of [Crossplane](https://crossplane.io). It's fully compatible
+with upstream Crossplane, open source, capable of connecting to Upbound Cloud
+for real-time dashboard visibility, and maintained by Upbound. It's the easiest
+way for both individual community members and enterprises to build their
+production control planes.

packages/universal-crossplane/overlay/questions.yaml

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+questions: 
+- variable: upbound.controlPlane.token
+  required: false
+  type: password
+  label: Control plane token to connect Upbound Cloud
+  group: "Upbound"

packages/universal-crossplane/package.yaml

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+url: https://charts.upbound.io/stable/universal-crossplane-1.2.1-up.3.tgz
+packageVersion: 00

packages/universal-crossplane/universal-crossplane.patch

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+diff -x '*.tgz' -x '*.lock' -uNr packages/universal-crossplane/charts-original/Chart.yaml packages/universal-crossplane/charts/Chart.yaml
+--- packages/universal-crossplane/charts-original/Chart.yaml
++++ packages/universal-crossplane/charts/Chart.yaml
+@@ -1,8 +1,11 @@
+ apiVersion: v1
+-appVersion: 1.2.1-up.3
++appVersion: 1.2.1003
+ description: Upbound Universal Crossplane allows you to connect your Crossplane-enabled cluster to Upbound Cloud.
+ home: https://upbound.io
+ icon: https://crossplane.io/images/favicon_192x192.png
++annotations:
++  catalog.cattle.io/certified: partner
++  catalog.cattle.io/release-name: universal-crossplane
+ keywords:
+ - cloud
+ - infrastructure
+@@ -31,4 +34,4 @@
+ - email: info@upbound.io
+   name: Upbound Inc.
+ name: universal-crossplane
+-version: 1.2.1-up.3
++version: 1.2.1003