Added remove validation popup

Sources/app/src/main/java/Popups/RemovePopup.java

...p/src/main/java/com/furwaz/roomview/BuildingActivity.java

...s/app/src/main/java/com/furwaz/roomview/MainActivity.java

...s/app/src/main/java/com/furwaz/roomview/RoomActivity.java

...s/app/src/main/java/com/furwaz/roomview/ZoneActivity.java

Sources/app/src/main/res/layout/remove_popup.xml

Sources/app/src/main/res/values-fr/strings.xml

Sources/app/src/main/res/values/strings.xml