A nice templating system is used for account settings dialogues― the
required slots are specified by the protocol, and are reflected in the
settings dialogue.
To generalize this templating system (and eventually use elsewhere),
ProtocolSettings was split into two classes― ProtocolSettings and
ProtocolTemplate.
The CayaProtocol::SettingsTemplate() call was also edited to require a
string parameter, naming the specific template that should be returned.
"account" is used for the account settings dialogue, and other values
are TBA.
Now an add-on can contain multiple protocols, and the protocol API has
changed. An add-on must now export protocol_count() and protocol_at(),
with the latter replacing protocol(). protocol_count() returning the
amount of protocols in a given add-on, and protocol_at(i) giving a
new CayaProtocol* "at" the given index.
CayaProtocol has also been changed, adding Signature(),
FriendlySignature(), Icon(), Path(), and SetPath(). The reasoning is
that different protocols (even within a single add-on) will have
different signatures and icons, so this data should be accessible from
the protocol itself.
CayaProtocolAddOn now has CountProtocols() and ProtocolAt(i), allowing
the accessing of multiple protocols. A CayaProtocolAddOn can be given a
default protocol index in the constructor, whose protocol will be
returned with Protocol(). Version() was also moved from CayaProtocol to
CayaProtocolAddOn.