/**Returns the numbers of units fo a specific type at a specific tick.
* \param unittype The shipname, as a std string
* \param tick The tick you want to look at, tick 0 (before battle) is default
/**Returns the numbers of units fo a specific type at a specific tick.
* \param unittype The shipname, as a std string
* \param tick The tick you want to look at, tick 0 (before battle) is default