om_lm: Run linear regression model (with interactions)
In openmindplatform/openmindR:

This function performs linear regression and gives back some neat info

1	om_lm(.data, lin_mod, type = "int", switch = F, nudge_y = -0.5)

`.data`	data
`lin_mod`	a fitted model
`type`	what kind of model (currently only accepts `"int"` for interactions)
`switch`	logical. Switch variables in interaction plot. Default is `FALSE`
`nudge_y`	Decide the absolute value by which text label should be nudged (defaults to -0.5)