Add FlashDataBuilder #432

Job	Run time
Unit Tests (x86_64-unknown-linux-gnu)	53s
Check lib (x86_64-unknown-linux-gnu)	43s
Unit Tests (aarch64-unknown-linux-gnu)	1m 56s
Check (x86_64-apple-darwin)	57s
Check lib (aarch64-unknown-linux-gnu)	1m 43s
Clippy (x86_64-unknown-linux-gnu)	23s
Check (x86_64-unknown-linux-gnu)	39s
Check lib (armv7-unknown-linux-gnueabihf)	1m 24s
Clippy (aarch64-unknown-linux-gnu)	1m 52s
Check (x86_64-unknown-linux-musl)	25s
Check (x86_64-pc-windows-msvc)	2m 21s
Unit Tests (armv7-unknown-linux-gnueabihf)	1m 31s
Clippy (armv7-unknown-linux-gnueabihf)	1m 29s
Check (aarch64-unknown-linux-gnu)	2m 0s
Check MSRV (x86_64-unknown-linux-gnu)	46s
Check (armv7-unknown-linux-gnueabihf)	1m 26s
Rustfmt	7s
Check MSRV (aarch64-unknown-linux-gnu)	1m 55s
Check MSRV (armv7-unknown-linux-gnueabihf)	2m 0s
	24m 30s

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