Add Sigil-1.3.0. (#3082)

ALLUSERS needed for cancel VcRedist prompt & install under "C:\ProgramFiles\".

manifests/Sigil-Ebook/Sigil/1.3.0.yaml

@@ -0,0 +1,18 @@
+Id: Sigil-Ebook.Sigil
+Version: 1.3.0
+Name: Sigil
+Publisher: Sigil-Ebook
+License: GPL3
+LicenseUrl: https://github.com/Sigil-Ebook/Sigil/blob/master/COPYING.txt
+AppMoniker: sigil
+Tags: ebook, sigil, ebook editor, epub
+Description: Sigil is a free, open source, multi-platform ebook editor that uses Qt (and QtWebEngine). It is designed to edit books in ePub format (both ePub 2 and ePub 3).
+Homepage: https://sigil-ebook.com/
+Installers:
+  - Arch: x64
+    Url: https://github.com/Sigil-Ebook/Sigil/releases/download/1.3.0/Sigil-1.3.0-Windows-x64-Setup.exe
+    Sha256: 7A262F57173E9A7974E07CB1638385AE2CAC27766E5C4B6E809A87F4B737A58A
+    InstallerType: inno
+    Switches:
+      Silent: /ALLUSERS /NORESTART /TYPE=FULL /VERYSILENT
+      SilentWithProgress: /ALLUSERS /NORESTART /TYPE=FULL /SILENT