Add minimize/restore event request

[rendrom]

Please add "fire" events for minimize and restore actions.

[rendrom]

My current solution with extend:

var EventedMiniMap = L.Control.MiniMap.extend({

    includes: L.Mixin.Events,

    _minimize: function () {
        L.Control.MiniMap.prototype._minimize.call(this);
        this.fire("minimized");
    },

    _restore: function () {
        L.Control.MiniMap.prototype._restore.call(this);
        this.fire("restore");
    },
});

[robpvn]

Seems doable, maybe even you would like to contribute it? 👍