Quote {build.source.path} to allow spaces in path (espressif#4868)

Previously sketches or examples that had spaces anywhere in their absolute
path caused a total build failure. By adding quotes around the path in
platform.txt, they now build correctly

Co-authored-by: Me No Dev <me-no-dev@users.noreply.github.com>

etboard pinmap upload (espressif#4748)

Co-authored-by: ketri-kjy <jinyoung@ketri.re.kr>
Co-authored-by: ketri2484 <ketri2484@gamil.com>

Improve cleanup in BLEClient (espressif#4742)

- Remove client from the list of devices in case registration fails
- Filter other events not related to registration during registration phase
- Cleanup if connect fails
- Reset if after disconnect
- Disconnect callback *after* cleanup is done so object can be deleted

This fixes some of the issues I had like:
- `BLEClient::connect` hangs up and never recovered because registration failed
- `BLEClient` could not be deleted after disconnect or deletion creating ghost events espressif#4047
- `BLEClient` could not be properly reused after a connection was attempted (successful or not) 

* Cleanup in case of registration and connect failure.
Cleanup before calling disconnect callback for safe delete.
Reject other events during registration.
Adresses espressif#4047, espressif#4055

* Clear if after unregister espressif#4047

Update toolchain and move files to github

IDF release/v3.3 cd59d107b (espressif#4708)

Co-authored-by: me-no-dev <me-no-dev@github.com>

Update esptool for Big Sur

Update WiFiClient.cpp (espressif#4573)

Replace (depricated) bzero, bcopy with memset and memcpy.

IDF release/v3.3 68b237fe5 with Disable IRAM optimisation for WiFi

Try to fix issue with GIT 2.29.0

Wait for client.available() to prevent ESP32 crashes (espressif#3154)

* Wait for client.available() to prevent ESP32 crashes

* Removed user-specific SSID & passphrase