Add font style support

[akexorcist]

Java

horizontalCalendar = new HorizontalCalendar.Builder(this, R.id.calendarView)
                ...
                .configure()
                    .typeface(ResourcesCompat.getFont(this, R.font.your_custom_font)
                    ...
                .end()
                ...

XML

<devs.mulham.horizontalcalendar.HorizontalCalendarView
            android:id="@+id/calendarView"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:textFontFamily="@font/your_custom_font"/>