Replace OSS licenses plugin with Licensee and some manually done UI.

This should fix both configuration cache and reproducible F-droid builds.

Cleanup and remove gplay/fdroid diff on open source licenses.

Co-authored by @jmartinesp

plugins/src/main/kotlin/extension/AssetCopyTask.kt

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2024 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
+ *
+ *     https://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.
+ */
+
+package extension
+
+import java.io.File
+import org.gradle.api.DefaultTask
+import org.gradle.api.file.DirectoryProperty
+import org.gradle.api.file.RegularFileProperty
+import org.gradle.api.provider.Property
+import org.gradle.api.tasks.CacheableTask
+import org.gradle.api.tasks.Input
+import org.gradle.api.tasks.InputFile
+import org.gradle.api.tasks.OutputDirectory
+import org.gradle.api.tasks.PathSensitive
+import org.gradle.api.tasks.PathSensitivity
+import org.gradle.api.tasks.TaskAction
+
+@CacheableTask
+abstract class AssetCopyTask : DefaultTask() {
+    @get:OutputDirectory
+    abstract val outputDirectory: DirectoryProperty
+
+    @get:PathSensitive(PathSensitivity.RELATIVE)
+    @get:InputFile
+    abstract val inputFile: RegularFileProperty
+
+    @get:Input
+    abstract val targetFileName: Property<String>
+
+    @TaskAction
+    fun action() {
+        println("Copying ${inputFile.get()} to ${outputDirectory.get().asFile}/${targetFileName.get()}")
+        inputFile.get().asFile.copyTo(
+            target = File(
+                outputDirectory.get().asFile,
+                targetFileName.get(),
+            ),
+            overwrite = true,
+        )
+    }
+}