Allow adding extra elements to the developer settings from external modules (#7230)

* Add `ExtraDeveloperOptionsRenderer` to display extra UI components in the developer settings screen. It defaults to not displaying anything, using `NoopExtraDeveloperOptionsRenderer`

* Add `EnterpriseService.overriddenElementWellKnown` method to fetch the current overridden element well known value, if any

* Modify the well known retrievers to use the overridden value if it's there. Also extract the JSON parsing to its own `ElementWellKnownParser` component.

* Bump enterprise repo reference.

features/enterprise/impl-foss/build.gradle.kts

@@ -23,6 +23,7 @@ dependencies {
     api(projects.features.enterprise.api)
     implementation(projects.libraries.architecture)
     implementation(projects.libraries.matrix.api)
+    implementation(projects.libraries.wellknown.api)
 
     testCommonDependencies(libs)
     testImplementation(projects.libraries.matrix.test)

features/enterprise/impl-foss/src/main/kotlin/io/element/android/features/enterprise/impl/DefaultEnterpriseService.kt

@@ -15,6 +15,7 @@ import io.element.android.compound.colors.SemanticColorsLightDark
 import io.element.android.features.enterprise.api.BugReportUrl
 import io.element.android.features.enterprise.api.EnterpriseService
 import io.element.android.libraries.matrix.api.core.SessionId
+import io.element.android.libraries.wellknown.api.ElementWellKnown
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.flowOf
 
@@ -45,4 +46,6 @@ class DefaultEnterpriseService : EnterpriseService {
     }
 
     override fun getNoisyNotificationChannelId(sessionId: SessionId): String? = null
+
+    override fun overriddenElementWellKnown(): ElementWellKnown? = null
 }