Set proper limits for BeamDistributionItems

Mikhail Svechnikovrequested to merge
m.0 into main
  1. Proper limits are set for wavelength, inclination and azimuthal angle during the initialization.
  2. Limits are passed from the old instance to the new one while switching between distributions.
  3. Limits are preserved while "reading" distributions from the project

Resolves #1095 (closed)

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