Allow chip-tool echo-ble to work along with credential passing

[kpschoedel]

Prior to #1898, received bluetooth messages were echoed back
to the sender, and this facility is used by the command-line
chip-tool echo-ble. To restore that, this change adopts a
stricter format for WiFi credentials and treats anything else
as an echo request. (This too is temporary code, pending an
actual rendezvous implementation.)

[github-actions]

Size increase report for "nrf-example-build"

File	Section	File	VM

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

Comparing ./master_artifact/chip-nrf52840-lock-example.out and ./pull_artifact/chip-nrf52840-lock-example.out:

sections,vmsize,filesize

[github-actions]

Size increase report for "nrfconnect-example-build"

File	Section	File	VM

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

Comparing ./master_artifact/chip-nrf52840-lock-example.elf and ./pull_artifact/chip-nrf52840-lock-example.elf:

sections,vmsize,filesize

[github-actions]

Size increase report for "linux-example-build"

File	Section	File	VM

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

Comparing ./master_artifact/chip-standalone-demo.out and ./pull_artifact/chip-standalone-demo.out:

sections,vmsize,filesize

[github-actions]

Size increase report for "esp32-example-build"

File	Section	File	VM

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

Comparing ./master_artifact/chip-wifi-echo.elf and ./pull_artifact/chip-wifi-echo.elf:

sections,vmsize,filesize
.debug_line,0,140
.debug_info,0,64
.debug_loc,0,29
.debug_abbrev,0,12
[Unmapped],0,-1

[github-actions]

Size increase report for "gn_nrf-example-build"

File	Section	File	VM

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

[github-actions]

Size increase report for "gn_linux-example-build"

File	Section	File	VM

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

[woody-apple]

@kpschoedel can you sign the CLA please? Then we can merge :)

[kpschoedel]

@kpschoedel can you sign the CLA please? Then we can merge :)

https://cla-assistant.io/project-chip/connectedhomeip insists I have :(

(Local folks who have had signing problems say they had multiple accounts, but I don't.)

[woody-apple]

@kpschoedel can you sign the CLA please? Then we can merge :)

https://cla-assistant.io/project-chip/connectedhomeip insists I have :(

(Local folks who have had signing problems say they had multiple accounts, but I don't.)

Thanks, will investigate. This may actually be the GitHub bot not kicking in.

[woody-apple]

Note for people in future, I had to log into cla-assistant and click re-check PRs... this one must have bugged out somehow?