ENH: Unify data handling under `EpicsData` #114

Job	Run time
standard / pre-commit checks / pre-commit	14s
standard / Documentation / Python 3.9: documentation building	41s
standard / Conda (3.10) / Python 3.10: conda	2m 19s
standard / Conda (3.11, true) / Python 3.11: conda	2m 17s
standard / Conda (3.12, true) / Python 3.12: conda	2m 8s
standard / Conda (3.9, true) / Python 3.9: conda	2m 26s
standard / Pip (3.10) / Python 3.10: pip	59s
standard / Pip (3.11, true) / Python 3.11: pip	54s
standard / Pip (3.12, true) / Python 3.12: pip	2m 32s
standard / Pip (3.9, true) / Python 3.9: pip	55s
standard / Documentation / Documentation deployment	0s
	15m 25s

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