Problem 102: Point and Triangle data types
Problem 102: Add input/triangles.txt
Move old/ProjectEuler.hs to ./ProjectEuler.hs
Problem 102: Read and parse input file
Problem 102: Implement stringToInteger
Problem 102: Fix stringToInteger to work with negative numbers; parse input file
Problem 102: Implement makePoints to create a list of Points from a list of an even number of Integers; use makePoints to create a list of Triangles from parsed input values; change Triangle data structure to use record syntax; add getters for Point
Problem 102: Add Line data type; implement slope and yCoord functions
Problem 102: Implement contains
Move count function from problem54.hs to ProjectEuler.hs for reuse
Problem 102: Finish implementing