Replace Slint UI with UIKit and add milestones

Fixes #2.\nFixes #9.

ios/project.yml

@@ -10,7 +10,14 @@ targets:
     deploymentTarget: "17.0"
     settings:
       PRODUCT_BUNDLE_IDENTIFIER: de.rfc1437.gotcha
+      DEVELOPMENT_TEAM: MU22FMRGK8
+      CODE_SIGN_STYLE: Automatic
+      TARGETED_DEVICE_FAMILY: "1"
       CODE_SIGN_ENTITLEMENTS: Gotcha.entitlements
+      SWIFT_VERSION: "5.0"
+      SWIFT_OBJC_BRIDGING_HEADER: Gotcha-Bridging-Header.h
+      LIBRARY_SEARCH_PATHS: "$(inherited) $(DERIVED_FILE_DIR)/rust"
+      OTHER_LDFLAGS: "$(inherited) -lgotcha_core"
     info:
       path: Info.plist
       properties:
@@ -20,10 +27,12 @@ targets:
           - UIInterfaceOrientationPortrait
     sources:
       - Assets.xcassets
-    postCompileScripts:
-      - name: Build Rust app
+      - Sources
+      - Generated/gotcha_core.swift
+    preBuildScripts:
+      - name: Build Rust core
         basedOnDependencyAnalysis: false
         script: |
-          ./build_for_ios_with_cargo.bash gotcha-app
+          ./build_rust_core.bash
         outputFiles:
-          - $(TARGET_BUILD_DIR)/$(EXECUTABLE_PATH)
+          - $(DERIVED_FILE_DIR)/rust/libgotcha_core.a