add License file

License.txt

@@ -1,5 +1,17 @@
-The SSHFS-Win project is Copyright (C) Bill Zissimopoulos. It is licensed
-under the terms of the GPLv2+.
+SSHFS-Win - SSHFS For Windows
+Copyright 2015-2021 Bill Zissimopoulos
+
+SSHFS-Win uses the same license as SSHFS, which is GPLv2+. It interfaces
+with WinFsp which is GPLv3 with a FLOSS exception.
+
+It also packages the following components:
+
+- Cygwin: LGPLv3
+- GLib2: LGPLv2
+- SSH: "all components are under a BSD licence,
+  or a licence more free than that"
+
+The full text of the GPLv2 license follows below.
 
 -----------------------------------------------------------------------
 

sshfs-win.wxs

@@ -70,6 +70,9 @@
                     Value="[INSTALLDIR]"
                     KeyPath="yes" />
             </Component>
+            <Component Id="C.License.txt">
+                <File Name="License.txt" Source="License.txt" KeyPath="yes" />
+            </Component>
             <Component Id="C.sshfs.reg" Guid="{3EF97966-E49E-4A0B-B68D-5EB2BDA61C21}">
                 <RegistryKey
                     Root="HKLM"
@@ -211,6 +214,7 @@
             InstallDefault="local"
             Absent="disallow">
             <ComponentRef Id="C.INSTALLDIR" />
+            <ComponentRef Id="C.License.txt" />
             <ComponentRef Id="C.sshfs.reg" />
             <ComponentRef Id="C.sshfs.r.reg" />
             <ComponentRef Id="C.sshfs.k.reg" />