Mongoose OS 2.5

• Update littlefs to 1.5
• Reduce the size of the config defaults file
• mos: Fix local builds under Docker Toolbox
• wifi: Fix crash in mgos_wifi_get_connected_ssid when WiFi is disabled
• wifi: Disable WiFi PM on CC32xx
• wifi: Remove deprecated mgos_wifi_add_on_change_cb API
• A couple wifi fixes
• Fix refcounting in mgos_vfs_rename
• spi: Basic QSPI support on STM32
• pwm: Fix struct init in esp32_pwm
• Fix provisioning lib on CC32xx
• wifi: Add wifi events, incl. station connect/disconnect
• STM32: GPIO interrupt support
• Ethernet support on both NUCLEO and DISCO-F746NG
• STM32: Initial support for L4 and B-L475E-IOT01A
• Fix SPI.runTransaction in FD mode
• mg: Add host name verification for OpenSSL
• mg: Don't touch send_mbuf when sending MQTT messages
• mos: Aded support for non-GitHub Git repos
• cron: Add mgos_cron_get_next_invocation()
• frozen: Add minimal, reduced footprint mode
• Accept hex numbers in confX.json
• A bunch of fixes for STM32 flash VFS driver
• Fix open() implementation for LFS
• A bunch of mos build changes related to libs: support subdirs in location specs, only check for prebuilt libs if needed
• STM32: OTA support for L475-IOT01 and DISCO-F746
• ESP32: Knobs for inverting UART Rx and Tx polarity
• Restore ADC functionality on ESP8266
• frozen/pull/27 - fix json_setf