Default's for MarkovConsumerType don't work.

[DominicWC]

Describe the bug
The default constructor for the income distributions for MarkovConsumerType don't create unique distributions for each state, leading HARK to throw an error.

To Reproduce
Run:

from HARK.ConsumptionSaving.ConsMarkovModel import MarkovConsumerType
MarkovExample = MarkovConsumerType()
MarkovExample.solve()

Expected behavior
The model should solve without issue.

Error message:
File ~\Desktop\Econ Ark Work\HARK\HARK\ConsumptionSaving\ConsMarkovModel.py:821, in MarkovConsumerType.check_markov_inputs(self)
[819] for IncShkDstn_t in self.IncShkDstn:
[820] if not isinstance(IncShkDstn_t, list):
--> [821] raise ValueError(
[822] "self.IncShkDstn is time varying and so must be a list"
[823] + "of lists of Distributions, one per Markov State. Found "
[824] + f"{self.IncShkDstn} instead"
[825] )
[826] elif len(IncShkDstn_t) != StateCount:
[827] raise ValueError(
[828] "List in IncShkDstn is not the right length, it should be length equal to number of states"
[829] )

ValueError: self.IncShkDstn is time varying and so must be a listof lists of Distributions, one per Markov State. Found <HARK.distribution.IndexDistribution object at 0x00000244DDBA7AD0> instead

[DominicWC]

Markov Consumer Type also doesn't accept a time-varying Rfree like most other models do.