simulateReport: Simulate a single Report
In bips-hb/srsim: Spontaneous Reporting Simulator (SRSim)

Returns a single report for a spontaneous reporting system. Note that this function does not check whether the report is 'valid', see validReport

1	simulateReport(n_drugs, n_events, n_parents, beta0, beta1, parent_id)

`n_drugs`	The number of drugs
`n_events`	The number of events
`n_parents`	A vector with the number of parents for each of the nodes
`beta0`	A vector with the intercepts for the logistic regression models
`beta1`	A vector with the regression coefficients for each node
`parent_id`	A vector with the id of the parent