Send pin-drop location (#1179)

* add location sharing action in room, and open location sharing screen

* add pin location sharing

* fix asset, add tests for location viewModel, add send location request

* fix map zoom level, fix assets for location

* add feature flag for location sharing

* hide attribution button

ElementX/Sources/Other/SwiftUI/Views/LocationMarkerView.swift

@@ -0,0 +1,38 @@
+//
+// Copyright 2023 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import SwiftUI
+
+struct LocationMarkerView: View {
+    var body: some View {
+        Image(Asset.Images.locationMarker.name)
+            .alignmentGuide(VerticalAlignment.center) { dimensions in
+                dimensions[.bottom]
+            }
+            .shadow(color: .black.opacity(0.2), radius: 8, x: 0, y: 5)
+    }
+}
+
+struct LocationMarkerView_Previews: PreviewProvider {
+    static var previews: some View {
+        VStack(spacing: 30) {
+            LocationMarkerView()
+
+            LocationMarkerView()
+                .colorScheme(.dark)
+        }
+    }
+}