Mihail Latyshov

Add an option to change BLE_ATT_ATTR_MAX_LEN

1

For my HID device I need bigger than 512 bytes report map, currently I have to change this line https://github.com/h2zero/esp-nimble-cpp/blob/cd115f1738fbf9134a4b00ed41d36fb20cafe22c/src/NimBLEAttValue.h#L30 and in nimble as well https://github.com/apache/mynewt-nimble/blob/baf2930d32c21222b77086181d842301bff9721f/nimble/host/include/host/ble_att.h#L227 Without changing this lines...