Update SQLitePclRaw to 2.1.6

Author: JoeRobich

tools/packages.config

@@ -4,7 +4,7 @@
     <package id="xunit.runner.console" version="2.9.3" />
 
     <!-- These packages are dependencies of the .NET Framework builds of OmniSharp running on Mono -->
-    <package id="SQLitePCLRaw.bundle_green" version="2.1.0" />
-    <package id="SQLitePCLRaw.core" version="2.1.0" />
-    <package id="SQLitePCLRaw.provider.e_sqlite3" version="2.1.0" />
+    <package id="SQLitePCLRaw.bundle_green" version="2.1.6" />
+    <package id="SQLitePCLRaw.core" version="2.1.6" />
+    <package id="SQLitePCLRaw.provider.e_sqlite3" version="2.1.6" />
 </packages>