Only apply VID-only port property association to compatible dev tools

The Arduino boards platform framework allows properties of a port to be
associated with a board definition. The Arduino development software
will identify a port having the associated properties as that board.

The "Blues boards" board definition contains an association for the vid
port property value of 0x30A4. Typically, in addition to the vid
property, a companion pid property will also be associated so that the
association is specific to devices with that VID/PID pair. However, this
board definition only associates a vid property. Although unusual, this
is reasonable in this case where the board definition provides support
for all models of the Blues boards (rather than one specific model as is
typically the case).

Unfortunately it seems that the Arduino IDE 1.x codebase is written in a
way that assumes a PID association will always be provided along with a
VID association. When a platform is installed that contains a board
definition that associates a vid property without also associating a pid
property, it breaks port discovery entirely, causing no ports to be
discovered for any board.

The port discovery and port properties association system has been
completely reworked since the time of Arduino IDE 1.x. The modern
system, which is used by Arduino IDE 2.x and Arduino CLI, doesn't have
any problem with this VID-only association. This means that it would be
possible to define this association without breaking Arduino IDE 1.x if
the association could be applied exclusively for the modern Arduino
development software versions. Arduino IDE 1.x only uses the port
property association for the convenience feature of labeling the port in
the "Port" menu, so the lack of an association doesn't cause any
meaningful impact.

At the time the port discovery and port properties association system
was reworked, the port property association properties were renamed to
support association with any arbitrary properties. (while retaining
support for the old property names). The new property names are only
recognized by the modern Arduino development software and have no effect
on Arduino IDE 1.x.

The port association properties for the "Blues boards" board definition
are migrated from the old property names previously in use to the new
names. This causes the port property association to no longer be
recognized by Arduino IDE 1.x, fixing the breakage of its port discovery
system. The association will still be recognized by the modern versions
of Arduino development software just as before.

Author: per1234

boards.txt

@@ -12463,7 +12463,7 @@ Blues.build.st_extra_flags=-D{build.product_line} {build.enable_usb} {build.xSer
 Blues.build.flash_offset=0x0
 Blues.upload.maximum_size=0
 Blues.upload.maximum_data_size=0
-Blues.vid.0=0x30A4
+Blues.upload_port.0.vid=0x30A4
 
 # Swan R5 board
 Blues.menu.pnum.SWAN_R5=Swan R5