Major updates

Possibility to import / export formulas from an excel file (as it is possible for the metrics referential)

Possibility to duplicate a formula

In continuous mode, the formula only writes a value when an input data changes

Timezone associated with formula can be saved and configured

Addition of MIN, MAX, AVG, SUM, COUNT functions between two dates returning a single value

Addition of DateTime type in equations (with a function set)

Added functions for retrieving unitary data in time (FirstValueAfter, LastValueBefore)

Addition of immediate functions to the equation engine

Addition of a function to retrieve the -1 state of a metric : PreviousValue(metricName)