Weights and delays moved in sPyNNaker(8)

[andrewgait]

Moved the weights and delays out of the connectors in sPyNNaker8, but that change meant everything no longer worked with PyNN0.7. These are part of the changes needed to make it work again.

Depends on https://github.com/SpiNNakerManchester/sPyNNaker/pull/525

[andrewgait]

(The rest of the changes were in sPyNNaker: https://github.com/SpiNNakerManchester/sPyNNaker/pull/525)

[coveralls]

Pull Request Test Coverage Report for Build 776

• 30 of 64 (46.88%) changed or added relevant lines in 9 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-2.002%) to 66.237%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
spynnaker7/pyNN/models/connectors/multapse_connector.py	5	7	71.43%
spynnaker7/pyNN/models/connectors/fixed_probability_connector.py	3	7	42.86%
spynnaker7/pyNN/models/connectors/fixed_number_post_connector.py	3	7	42.86%
spynnaker7/pyNN/models/connectors/fixed_number_pre_connector.py	3	7	42.86%
spynnaker7/pyNN/models/connectors/distance_dependent_probability_connector.py	3	7	42.86%
spynnaker7/pyNN/models/connectors/from_list_connector.py	2	6	33.33%
spynnaker7/pyNN/models/connectors/all_to_all_connector.py	3	7	42.86%
spynnaker7/pyNN/models/connectors/one_to_one_connector.py	5	9	55.56%
spynnaker7/pyNN/models/connectors/small_world_connector.py	3	7	42.86%
<!--	Total:	30	64	46.88%	-->

Totals
Change from base Build 762:	-2.002%
Covered Lines:	463
Relevant Lines:	699

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💛 - Coveralls

[Christian-B]

As we are no longer updating pynn0.7 closing this PR but leaving branch.