add projects directly instead of scanning for them

IntelliJ Idea cannot import projects unless they are listed in the
settings.gradle

settings.gradle

@@ -1,7 +1,8 @@
-// include all projects with a build.gradle
+include("block-storage")
-// (this does not support nested projects)
+include("data-store")
-File srcDir = new File(".")
+include("pdb-api")
-FileCollection collection = files { srcDir.listFiles() }
+include("pdb-js")
-collection.filter{ new File(it, "build.gradle").isFile() }.each{ include it.getName() }
+include("pdb-plotting")
-
+include("pdb-ui")
-
+include("pdb-utils")
+include("performanceDb")