tree 027f726d426acb345c4c9fec4b3e509e267f5664
parent 3f687dc5bc2122323b5288e078db66ba203a5b31
author David Brown <david.brown@linaro.org> 1510001642 -0700
committer David Brown <davidb@davidb.org> 1510072785 -0700

sim: Move `Images` methods to be methods

Now that most of the relevant data is assembled into a single `Images`
struct, make the test operations on it into methods on this type.

This change looks larger than it really is because of the indentation
change of moving top-level functions into methods.  There is also a lot
of change of `image` to `self`.

Signed-off-by: David Brown <david.brown@linaro.org>