improving ivec and iboot defaults in ipmag.aniso_magic/ipmag.plot_aniso

[Swanson-Hysell]

Currently ipmag.aniso_magic() via the ipmag.plot_aniso() function is set up so that the ivec parameter only works when iboot is also true. It is nested inside of the if iboot: statement.

This functionality is confusing and in conflict with the description of the parameters.

• ivec (confidence bound parameter): if True - plot bootstrapped eigenvectors instead of ellipses
• iboot (confidence bound parameter): if True - bootstrap ellipses

It makes sense to have it be that ivec can be chosen independent of iboot.

Additionally, the bootstrap eigenvalue confidence plot is only shown when ivec=True and not for iboot=True if ivec=False. It probably makes sense for the default behavior to be that when either iboot=True or ivec=True that the bootstrap eigenvalue confidence plot is shown.

PmagPy version: 4.2.115