Switch to leaner MCP23017 library, create new aligned partition tables

platformio.ini

@@ -20,8 +20,9 @@ framework =  arduino, espidf
 monitor_speed = 115200
 monitor_filters = esp32_exception_decoder, colorize
 board_build.filesystem = littlefs
-extra_scripts = post:scripts/extra_script.py
-board_build.embed_files = x509_crt_bundle
+extra_scripts = pre:scripts/pre_script.py, post:scripts/extra_script.py
+board_build.embed_files = 
+  x509_crt_bundle
 build_flags =
   !python scripts/git_rev.py
   -DLAST_BUILD_TIME=$UNIX_TIME
@@ -35,14 +36,13 @@ lib_deps =
     https://github.com/joltwallet/esp_littlefs.git
     bblanchon/ArduinoJson@^7.2.1
     mathieucarbou/ESPAsyncWebServer @ 3.3.23
-    adafruit/Adafruit BusIO@^1.16.2
-    adafruit/Adafruit MCP23017 Arduino Library@^2.3.2
+    robtillaart/MCP23017@^0.8.0
     adafruit/Adafruit NeoPixel@^1.12.3
-    https://github.com/dsbaars/universal_pin
+    https://github.com/dsbaars/universal_pin#feature/mcp23017_rt
     https://github.com/dsbaars/GxEPD2#universal_pin
     https://github.com/tzapu/WiFiManager.git#v2.0.17
     rblb/Nostrduino@1.2.8
-    
+
 [env:lolin_s3_mini]
 extends = btclock_base
 board = lolin_s3_mini
@@ -64,7 +64,7 @@ build_unflags =
 [env:btclock_rev_b]
 extends = btclock_base
 board = btclock_rev_b
-board_build.partitions = partition.csv
+board_build.partitions = partition_8mb.csv
 build_flags =
     ${btclock_base.build_flags}
     -D MCP_INT_PIN=8