gen_two_gaussian_dist: Generate a distribution from a two Gaussian mixture
In jrminter/particlesizeR: Convenience functions for particle size analysis

Generate a distribution from a two Gaussian mixture

1 2	gen_two_gaussian_dist(p1, mu1, s1, mu2, s2, start, stop, step, rn_seed = 42)

`p1`	- the fractional probability of the first Gaussian (< 1.0)
`mu1`	- the mean of the first Gaussian
`s1`	- the standard deviation of the first Gaussian
`mu2`	- the mean of the second Gaussian
`s2`	- the standard deviation of the second Gaussian
`start`	- starting value of x (e.g. diameter)
`stop`	- ending value of x (e.g. diameter)
`step`	- step x (e.g. diameter)
`rn_seed`	- the random number seed (default 42)