add egg info to gitignore #629

Job	Run time
build (3.10, jLEMS)	1m 12s
build (3.10, jNeuroML)	56s
build (3.10, jNeuroML_NEURON)	47s
build (3.10, jNeuroML_validate)	41s
build (3.10, PyLEMS)	41s
build (3.10, PyLEMS_NeuroML2)	41s
build (3.10, jNeuroML_Brian2)	1m 6s
build (3.10, Brian2)	52s
build (3.10, pyNeuroML_validate_sbml)	48s
build (3.11, jLEMS)	1m 0s
build (3.11, jNeuroML)	43s
build (3.11, jNeuroML_NEURON)	48s
build (3.11, jNeuroML_validate)	39s
build (3.11, PyLEMS)	40s
build (3.11, PyLEMS_NeuroML2)	44s
build (3.11, jNeuroML_Brian2)	1m 3s
build (3.11, Brian2)	53s
build (3.11, pyNeuroML_validate_sbml)	47s
	15m 1s

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