[WB-3436] add save_code to wandb.init()

[raubitsj]

also add wandb.run.project

[coveralls]

Pull Request Test Coverage Report for Build 4b2199ce-7b80-4b69-96ed-90e5bb5e6a7a

• 2 of 4 (50.0%) changed or added relevant lines in 1 file are covered.
• 4 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.02%) to 61.505%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
wandb/sdk/wandb_run.py	2	4	50.0%
<!--	Total:	2	4	50.0%	-->

Files with Coverage Reduction	New Missed Lines	%
wandb/compat/tempfile.py	2	59.09%
wandb/lib/server.py	2	80.0%
<!--	Total:	4		-->

Totals
Change from base Build 789ef72f-b1a9-460c-8c97-3af7c02bd63f:	-0.02%
Covered Lines:	13138
Relevant Lines:	21361

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💛 - Coveralls