Add local CodingTheory path to development projects #262

Job	Run time
Documentation	2m 34s
Performance	2m 8s
Format	59s
Julia 1.5 - ubuntu-latest - x64	3m 41s
Julia 1.5 - ubuntu-latest - x86	4m 8s
Julia 1.5 - macOS-latest - x64	4m 24s
Julia 1.5 - windows-latest - x64	14m 11s
Julia 1.5 - windows-latest - x86	18m 5s
Julia nightly - ubuntu-latest - x64	4m 44s
Julia nightly - ubuntu-latest - x86	2m 51s
Julia nightly - macOS-latest - x64	6m 0s
Julia nightly - windows-latest - x64	5m 48s
Julia nightly - windows-latest - x86	3m 41s
	1h 13m 14s

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