v2.0.2

Fix

• Eliminate quadratic memory growth in the tube construction
• Return errors from the library instead of terminating the process
• Give equ a single, magnitude-relative definition
• Stop readCSV overflowing its buffers by one element
• Reject empty or NULL input series in compareAndReport
• Free input data when directory creation fails in compareAndReport

Perf

• Build the tube outline in an array, not a linked list
• Load the shared library once per process, not once per call