Save (calculation) units for invoice printing

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The expressions for the calculation units

• Quantity unit
• Price unit as well as
• Time unit 

are saved in eafapo_t when saving outgoing vouchers.

Examples:
Code/Tariff M oder L

This is mainly used to create Crystal Reports prints.

(eafapo_t.einh_m_bez, eafapo_t.einh_p_bez, eafapo_t.einh_z_bez).