Add Geogebraclassic v6.0.600.0 (#3448)

* Add GeoGebra Classic v6.0.600.0

* Fixed faulty hash

manifests/GeoGebra/GeoGebraClassic/6.0.600.0.yaml

@@ -0,0 +1,30 @@
+# ================== General ==================
+Id: GeoGebra.GeoGebraClassic
+Publisher: GeoGebra
+Name: GeoGebraClassic
+Author: GeoGebra
+Description: Solve math problems, graph functions, create geometric constructions, do statistics and calculus, save and share your results. GeoGebra apps are used by millions of students and teachers around the world to learn and teach mathematics and science.
+AppMoniker: geogebraclassic
+Tags: math tool, graphing, geometry, spreadsheet, probability, CAS
+
+# ================== License ==================
+Homepage: https://www.geogebra.org/
+License: Non-commercial freeware; portions under GPL, CC-BY-NC-SA
+LicenseUrl: https://www.geogebra.org/license
+
+# ================= Installer =================
+MinOSVersion: 10.0.0.0
+Version: 6.0.600.0
+
+Switches:
+      Custom: /norestart
+      Silent: /quiet /qn
+      SilentWithProgress: /passive
+      Language: en-US
+
+InstallerType: msi
+Installers:
+  - Arch: x86
+    Url: https://download.geogebra.org/installers/6.0/GeoGebra-Windows-Installer-6-0-600-0.msi
+    Sha256: 406EC3C8320459D9EDC5E55338648CA247202C5BF340A3ED15EFC29C915251C6
+    Scope: machine