Calculate the token_a / token_b ratio of a (ficticious) position

Parameters

• sqrt_price - A u128 integer representing the sqrt price of the pool
• tick_index_1 - A i32 integer representing the first tick index of the position
• tick_index_2 - A i32 integer representing the second tick index of the position

Returns

• A PositionRatio struct containing the ratio of token_a and token_b