Move out common message event content classes

ImageContent is usable outside of m.room.message (in particular, m.room.avatar
uses the same structure for content. And EventContent::Base is very suitable to
derive from even for standard event content structures (such as in room name
events), let alone non-standard ones.
Also, renamed MessageEventContent to EventContent (for obvious reasons).

1 files changed, 1 insertions, 0 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2abf7e69..0395774a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -62,6 +62,7 @@ set(libqmatrixclient_SRCS
    user.cpp
    settings.cpp
    events/event.cpp
+   events/eventcontent.cpp
    events/roommessageevent.cpp
    events/roomnameevent.cpp
    events/roomaliasesevent.cpp