MFC r360070:
Add missing feature descriptions to hci_features2str().

The list of possible features in hccontrol/features2str() is incomplete.
Refer to "Bluetooth Core Specification 5.2 Vol. 2 Part C. 3.3 Feature Mask Definition".

Submitted by: Marc Veldman <marc@bumblingdork.com>
PR: 245354
Sponsored by: Mellanox Technologies

MFC r298881, 298882, 298883, 298885:

Minor spelling fixes in:
tools, share, bluetooth, pmcstat, etc

Many of these have user-visible strings.

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

- Add HCI node autodetection. As a consequence of this, make the '-n'
parameter optional.
- Add Read_Node_List command which prints a list of available HCI nodes,
their Netgraph IDs and connected hooks

Reviewed by: emax
Approved by: emax
MFC after: 1 week

Update Bluetooth code.

Reviewed by: M. Warner Losh <imp@bsdimp.com>; John Hay <jhay@freebsd.org>
Approved by: M. Warner Losh <imp@bsdimp.com> (mentor)

Part 2 of the commit if new bluetooth code.
Submitted by: Maksim Yevmenkin <m_evmenkin@yahoo.com>
Approved by: re@

The second try a committing the bluetooth code
Has been seen to work on several cards and communicating with
several mobile phones to use them as modems etc.

We are still talking with 3com to try get them to allow us to include
the firmware for their pccard in the driver but the driver is here..
In the mean time
it can be downloaded from the 3com website and loaded using the utility
bt3cfw(8) (supplied) (instructions in the man page)

Not yet linked to the build

Submitted by: Maksim Yevmenkin <myevmenk@exodus.net>
Approved by: re