*      Returns parameter of a company corresponding the given parameter:
*      p_bukrs ('BUKRS') and the parameter type ('T001Z-PARTY')
*---------------------------------------------------------------------*
*      -->P_BUKRS     -  Company Code
*      -->P_TYPE      -  Parameter type
*
* USAGE: e.g.:
* f_get_company_param USING 'RU01', gc_okpo_type CHANGING p_param
*
* The function returns the okpo code for company RU01.
*---------------------------------------------------------------------*

* Table T001Z contains row with the following structure:
* 'mandt', 'bukrs', 'party', 'paval'
* 'party' is the type of the paramer. e.g. 'SAPR02' = OKPO
* 'paval' is the value of the given parameter type