Call: Refactoring Plugins UI and add plugins with settings per account support

...roid/app/src/main/java/cx/ring/adapters/PluginsAdapter.kt

...-android/app/src/main/java/cx/ring/client/CallActivity.kt

...droid/app/src/main/java/cx/ring/fragments/CallFragment.kt

...id/app/src/main/java/cx/ring/plugins/PluginPreferences.kt

...-android/app/src/main/java/cx/ring/plugins/PluginUtils.kt

...app/src/main/java/cx/ring/services/HardwareServiceImpl.kt

...in/java/cx/ring/settings/pluginssettings/PluginDetails.kt

...va/cx/ring/settings/pluginssettings/PluginsListAdapter.kt

.../main/java/cx/ring/viewholders/PluginSettingViewHolder.kt

...app/src/main/java/cx/ring/viewholders/PluginViewHolder.kt

ring-android/app/src/main/res/layout/frag_call.xml

...oid/app/src/main/res/layout/frag_plugin_handlers_list.xml

...ndroid/app/src/main/res/layout/frag_plugins_list_item.xml

...d/app/src/main/res/layout/item_conference_participant.xml

ring-android/app/src/main/res/values/styles.xml

...jamiclient/src/main/kotlin/net/jami/call/CallPresenter.kt