Bump package version to 1.8.0 (#389)

Author: andystaples

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog
 
+## v1.8.0
+
+- Add Schedule Support for Durable Task Framework ([#368](https://github.com/microsoft/durabletask-dotnet/pull/368))
+- Fixes and improvements
+
 ## v1.7.0
 
 - Add parent trace context information when scheduling an orchestration ([#358](https://github.com/microsoft/durabletask-dotnet/pull/358))

eng/targets/Release.props

@@ -17,7 +17,7 @@
   </PropertyGroup>
 
   <PropertyGroup>
-    <VersionPrefix>1.7.0</VersionPrefix>
+    <VersionPrefix>1.8.0</VersionPrefix>
     <VersionSuffix></VersionSuffix>
   </PropertyGroup>