Add ability to call LeRand and provide a callback function.

Bug: 219982689
Test: mma -j $(nproc)
Test: ./build.py
Test: atest bluetooth_test_gd_unit --test-filter="*controller*"
Tag: #floss
Change-Id: Id501efa2073f3b8887f7ca9a3894050becebc5cd

Bug: 228987097
Test: mma -j $(nproc)
Test: ./build.py
Tag: #floss
Change-Id: I6d90aa94564cd7ad4870e36dc3b35e205bf7b030

Bug: 228987097
Test: mma -j $(nproc)
Test: ./build.py
Tag: #floss
Change-Id: Ib59494ad71fab1eeb23a5606f4c0b3f58096174e

Allow for a disconnect of all currently connected devices to be issued
from the application layer.

Bug: 224604354
Test: mma -j $(nproc)
Test: ./build.py
Tag: #floss
Change-Id: I2020a3e7afeebab454ed896caa760213bf75b025

Bug: 224604354
Test: mma -j $(nproc)
Test: ./build.py
Tag: #floss
Change-Id: Ie3617b6e9cce42b222d873c32e990d1b679ae040

Bug: 224603967
Test: mma -j $(nproc)
Test: ./build.py
Tag: #floss
Change-Id: I9b0d38d5f9ccb2d648c01fbfd6b2f2891804d4ed

Bug: 223832382
Test: mma -j $(nproc)
Test: ./build.py
Tag: #floss
Change-Id: I07ffbc7ebfd12862c1d84259174463fb5ab2917f

Bug: 229047843
Test: mma -j $(nproc)
Test: ./build.py
Test: gd/cert/run
Tag: #compatibility
Change-Id: Ida86098b8f2d23be0a17cdca2a3a9d2640df425a

Bug: 228986016
Test: mma -j $(nproc)
Test: ./build.py
Tag: #floss
Change-Id: I1e05f0f7f89731f7e8374a231228d84361d32a7d

Bug: 228987981
Test: mma -j $(nproc)
Test: ./build.py
Tag: #floss
Change-Id: Ia23e6eb902f40cec89d7313953ac2e2a8e6139bf

Add the ability to clear the connect list from the application layer.

Bug: 224603601
Test: mma -j $(nproc)
Test: ./build.py
Tag: #floss
Change-Id: Iec642cda5a7f1b92e699f98821e03bc48534dc97

Bug: 224603601
Test: mma -j $(nproc)
Test: ./build.py
Tag: #floss
Change-Id: I206102f246c881e92c7b7ddb02ce37ac420ee710

Bug: 224604598
Test: mma -j $(nproc)
Test: ./build.py
Tag: #floss
Change-Id: I3ea4ad6670b2fef949871f84b0bdba436076f98c

Bug: 223835863
Test: mma -j $(nproc)
Test: ./build.py
Tag: #floss
Change-Id: Iee557df2378d5941d6bfe1576ee7b3b5ce51b24a

Bug: 228986014
Test: mma -j $(nproc)
Test: ./build.py
Tag: #floss
Change-Id: Ide9796b1b39e7b296fbb0e6006f371e6527e0dfc

Bug: 228987980
Test: mma -j $(nproc)
Test: ./build.py
Tag: #floss
Change-Id: Ie8fac143b9c9e2f201e393af99cfc35ebc8816d6

Add the ability to clear the event mask from the application layer.

Bug: 224602054
Test: mma -j $(nproc)
Test: ./build.py
Tag: #floss
Change-Id: I4b6c8346ab7deca9c4f513f99c67ee54d62cf600

Bug: 224602054
Test: mma -j $(nproc)
Test: ./build.py
Tag: #floss
Change-Id: I0907538acd2cb40e976ff35dedb356762d2ffa22

Bug: 224569633
Test: mma -j $(nproc)
Test: ./build.py
Tag: #floss
Change-Id: Iacb7078f63e1389f32502feaae6bde81fe8787ad

Bug: 223832304
Test: mma -j $(nproc)
Test: ./build.py
Tag: #floss
Change-Id: I962e4afa6d0bdff1b1747e1666337795592c9c8b

Bug: 223832028
Test: mma -j $(nproc)
Test: ./build.py
Test: atest bluetooth_test_gd_unit --test-filter="*controller*"
Tag: #floss
Change-Id: Ib9061ab05ae8870f167c023ccddecb837b33f052

Bug: 220879741
Tag: #refactor
Test: gd/cert/run
BYPASS_LONG_LINES_REASON: Bluetooth likes 120 lines

Change-Id: Ic63967ba40618e3d25094d03df6b6fee79445a7b

The btm portion is more framework than layer and may
used by the shim/gd immediately at startup.

Bug: 229906389
Tag: #refactor
Test: gd/cert/run
BYPASS_LONG_LINES_REASON: Bluetooth likes 120 lines

Change-Id: Iba0ddc183aa8b45156d76d64f5473baf3e2f65fd

Bug: 229906389
Tag: #refactor
Test: gd/cert/run
BYPASS_LONG_LINES_REASON: Bluetooth likes 120 lines

Change-Id: Id20a2fbb9682bcabe4a10bb18ae6a50397d1204b

condition

Bug: 220733280
Test: atest BluetoothInstrumentationTests

Change-Id: I168b16a63d5b912a934df5fd40d65169473168bc

Fix some of the errors found with clang ToT.

system/gd/common/strings.cc:51:15: error: no member named
'find_if_not' in namespace 'std'

bt/system/gd/hci/hci_layer.h:139:27: error: unqualified call
to std::move [-Werror,-Wunqualified-std-cast-call]

The failure was noticed in ChromeOS tot llvm builds where this
repo is imported.

Bug: 228085014
Test: errors are fixed

Change-Id: I53bf7870ec6294d82f901affbdabf9c4f2b6d9ac

Bug: 229432405
Tag: #refactor
Test: gd/cert/run
BYPASS_LONG_LINES_REASON: Bluetooth likes 120 lines

Change-Id: I13bb5bbd0f3052cc917a6ac4a2fe534f1ff84b6c