I. Calculate the *expected* (multi-IFO) F-statistic for pulsar GW signals, without actually performing a search. The "F-statistic" was introduced in JKS98 and Cutler-Schutz 2005. Contrary to SemiAnalyticF this code can use (multi-IFO) SFTs to specify the startTime, duration, detectors and noise-floors to use in the estimation.