Merge branch 'cpt' into 'master'

Initial ucam package for CPT (Climate Modelling) v16.5.1

See merge request !36

packages/cpt.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<packages:packages xmlns:packages="http://www.wpkg.org/packages">
+
+  <!-- https://iri.columbia.edu/our-expertise/climate/tools/cpt/ -->
+
+  <package  id="cpt"  name="Climate Predictability Tool"  revision="%version%.1"  priority="50"  reboot="false">
+	<variable name="version" value="16.5.1" />
+
+	<check type="uninstall" condition="exists" path="CPT %version%" />
+
+	<install cmd='%WPKGSOFTWARE%\CPT\CPT_installation_%version%.exe /VERYSILENT' />
+
+	<upgrade cmd='%WPKGSOFTWARE%\CPT\CPT_installation_%version%.exe /VERYSILENT' />
+
+	<remove cmd='cmd /c if exist "%SYSTEMDRIVE%\CPT\unins000.dat" "%SYSTEMDRIVE%\CPT\unins000.exe" /verysilent' >
+		<exit code="1" />
+	</remove>
+	<remove cmd='cmd /c RMDIR /Q /S "%SYSTEMDRIVE%\CPT\"' >
+		<exit code="any" />
+	</remove>
+
+  </package>
+
+</packages:packages>