BULLETIN contains subroutines for writing a message directly to a folder.  This
would be useful for someone who is using the BBOARD feature, but wants to avoid
the extra overhead of having the message sent to an account as MAIL, and then
have BULLCP read the mail.  It is better if the network mail could be written
directly to the folder bypassing VMS MAIL, as it reduces a lot of cpu overhead.

Call INIT_MESSAGE_ADD to initiate a message addition.
Call WRITE_MESSAGE_LINE to write individual message lines.
Call FINISH_MESSAGE_ADD to complete a message addition.

Calling formats:

        CALL INIT_MESSAGE_ADD(IN_FOLDER,IN_FROM,IN_DESCRIP,IER)
C
C  INPUTS:
C       IN_FOLDER  - Character string containing folder name
C       IN_FROM    - Character string containing name of owner of message.
C                    If empty, the default is the owner of the process.
C       IN_DESCRIP - Character string containing subject of message.
C                    If empty, the message is searched for a line
C                    which starts with "Subj:" or "Subject:".
C  OUTPUTS:
C       IER - Error status.  True if properly connected to folder.
C               False if folder not found.
C

        CALL WRITE_MESSAGE_LINE(BUFFER)
C
C  INPUTS:
C       BUFFER - Character string containing line to be put into message.
C

        CALL FINISH_MESSAGE_ADD
C
C  NOTE:  Only should be run if INIT_MESSAGE_ADD was successful.
C
