Build using Toothpick scripts (#122)

Co-authored-by: BillyGalbreath <blake.galbreath@gmail.com>

buildSrc/src/main/kotlin/ToothpickSubproject.kt

@@ -0,0 +1,20 @@
+import org.gradle.api.Project
+import java.io.File
+
+class ToothpickSubproject {
+    lateinit var project: Project
+
+    val baseDir: File by lazy {
+        val name = project.name
+        val upstream = project.toothpick.upstream
+        val suffix = if (name.endsWith("server")) "Server" else "API"
+        project.upstreamDir.resolve("$upstream-$suffix")
+    }
+    val projectDir: File
+        get() = project.projectDir
+    lateinit var patchesDir: File
+
+    operator fun component1(): File = baseDir
+    operator fun component2(): File = projectDir
+    operator fun component3(): File = patchesDir
+}