Update Swift Protobuf dependency to 1.0.2.

Plugin/Package.swift

@@ -25,7 +25,7 @@ let package = Package(
     Target(name: "TemplateEncoder")
   ],
   dependencies: [
-    .Package(url: "https://github.com/apple/swift-protobuf.git", Version(0,9,903)),
+    .Package(url: "https://github.com/apple/swift-protobuf.git", Version(1,0,2)),
     .Package(url: "https://github.com/kylef/Stencil.git", Version(0,9,0))
   ]
 )

Plugin/Sources/protoc-gen-swiftgrpc/filters.swift

@@ -15,7 +15,7 @@
  */
 import Foundation
 import SwiftProtobuf
-import PluginLibrary
+import SwiftProtobufPluginLibrary
 import Stencil
 import PathKit
 
@@ -172,4 +172,4 @@ class GRPCFilterExtension : Extension {
 	      throw TemplateSyntaxError("message: invalid argument \(String(describing:value))")
 	    }
 	}
-}
+}

Plugin/Sources/protoc-gen-swiftgrpc/main.swift

@@ -15,7 +15,7 @@
  */
 import Foundation
 import SwiftProtobuf
-import PluginLibrary
+import SwiftProtobufPluginLibrary
 import Stencil
 import PathKit
 

Plugin/Sources/protoc-gen-swiftgrpc/models.swift

@@ -15,7 +15,7 @@
  */
 import Foundation
 import SwiftProtobuf
-import PluginLibrary
+import SwiftProtobufPluginLibrary
 import Stencil
 import PathKit