ENH: Unify data handling under `EpicsData` #115

Job	Run time
standard / pre-commit checks / pre-commit	23s
standard / Documentation / Python 3.9: documentation building	46s
standard / Conda (3.9, true) / Python 3.9: conda	2m 26s
standard / Conda (3.10) / Python 3.10: conda	2m 21s
standard / Conda (3.12, true) / Python 3.12: conda	2m 5s
standard / Conda (3.11, true) / Python 3.11: conda	2m 18s
standard / Pip (3.10) / Python 3.10: pip	51s
standard / Pip (3.11, true) / Python 3.11: pip	49s
standard / Pip (3.12, true) / Python 3.12: pip	2m 16s
standard / Pip (3.9, true) / Python 3.9: pip	52s
standard / Documentation / Documentation deployment	0s
	15m 7s

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