feat(platform): Use iwithprefixbefore to shorten the command lines

The command line for the ESP32 compilers is very long, and it is causing
problems with the Arduino IDE on Windows systems, which enforce a hard
32kB string limit.

This patch uses the iprefix/iwithprefixbefore options to shorten the
compiler command line by changing

	"-I{compiler.sdk.path}/include/aaa"
	"-I{compiler.sdk.path}/include/bbb"
	"-I{compiler.sdk.path}/include/ccc"
	...

to:

	-iprefix "{compiler.sdk.path}/include/"
	-iwithprefixbefore aaa
	-iwithprefixbefore bbb
	-iwithprefixbefore ccc
	...

Some targets have up to 200 paths so this can save A LOT of text.
On a sample run this patch shortened a single compile command from
28777 bytes to 10728.