chore: create presentation layer project

Signed-off-by: Alan Brault <alan.brault@visus.io>

Packages/TempestasPresentation/Tests/TempestasPresentationTests/TempestasPresentationTests.swift

@@ -0,0 +1,8 @@
+import Testing
+@testable import TempestasPresentation
+
+@Test func example() async throws {
+    // Write your test here and use APIs like `#expect(...)` to check expected conditions.
+    // Swift Testing Documentation
+    // https://developer.apple.com/documentation/testing
+}