Subjective test method planner

A dependency-light Python script (standard library only) that estimates the cost of every ITU subjective test method for a planned test. From your number of conditions, viewers, clip length, vote time, and fatigue-limited session length, it computes for ACR, ACR-HR, DCR, CCR, and Pair Comparison the ratings or pair count, clip views, total viewing time, and sessions required per viewer; it computes the full pair count as N*(N-1)/2, flags when full Pair Comparison exceeds a reasonable number of s