New "AddDataTypes", V45.2

This is the datatypes.library V45.3-matching release.

Includes a set of sample descriptors with tools, including descriptors for
AmigaVision Flow,
Aminet ReadMe,
FantaVision (IFF FANT),
IFF AIFF,
IFF SMUS,
LHarc,
MovieSetter and so on.


Part of the "DataTypes Replacement Project", which includes a new
"AddDataTypes", a new "datatypes.library" and a new "MultiView"
(GMultiView).

Changes since V45.1:
- Fixed the bug that AddDataTypes requests locale.library with a minimum version
  of V39. Now this is correctly set to V38, and AddDataTypes won't fire up the
  "Lib not found"-requester if locale.library wasn't found (not a MUST-BE-THERE
  resource).
  Fixed.

- Added basic descriptors for all GID_#? types (e.g. system, text, document, sound,
  instrument, music, picture, animation and movie).

- Some internals prepared for "objecttools.library".

- Added WB tooltype support.

- Added "Prefs"-like WB icon.

- Added check for illegal characters in the descriptor to get rid of the saving problem
  (e.g. when a descriptor's name contains ':', '/' etc.).

Changes since V41.6:
- Rewritten GUI.
  The gui has been improved and updated.

- Major code cleanup.

- AddDataTypes now contains internal safety checks, and notifies the user
  about problems (can't open library, can't load/save descriptor, corrupt descriptor etc.).

Features are:
- Fully compatible to the CBM Versions V39, V40 etc.

- Fully compatible to datatypes.library V45 (which support the new features)

- Includes a editor for the datatypes descriptors.

- Supports Tool Nodes.
  "Tool Nodes" are an unused datatypes feature.
  Using tool nodes, you can add tools (which supports the special data format in a special way)
  to the datatype descriptors.

  Applications like "GMultiView" are able to launch these special tools (e.g if the tool list
  includes a tool which is able to edit the datatype, you can use the "NetScape"-like menu item
  "Project/Open file in editor").

- AppWindow/AppIcon support for easy adding/removing descriptors from the system's descriptor list.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                10420   18732  55.6% -lh5- cc97 May 30  1997 AddDataTypes/AddDataTypes
[generic]                 5901   16560  35.6% -lh5- 8b4c May 26  1997 AddDataTypes/AddDataTypes.guide
[generic]                  257     486  52.9% -lh5- 13a1 Feb  4  1997 AddDataTypes/AddDataTypes.guide.info
[generic]                  377     606  62.2% -lh5- e536 May 26  1997 AddDataTypes/AddDatatypes.info
[generic]                21896   21896 100.0% -lh0- f8f9 May 13  1997 AddDataTypes/descr.lha
[generic]                  404     623  64.8% -lh5- 006e May 26  1997 AddDataTypes/Prefs/DataTypes.info
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         6 files   39255   58903  66.6%            Jun  4  1997