Represents market posotion.
MarketPosition members:
// Properties bool IsFlat // True if there is no opened position bool IsLong // True if current position is long bool IsShort // True if current position is short int this[int positionAgo] // returns position of positionAgo entry: // 1 for long position // 0 for flat position // -1 for short position // positionAgo is counted as follows: // MarketPosition[0] - current entry, // MarketPosition[1] - previous entry and so on.