Add serde derives to flash params #238

Job	Run time
Check (x86_64-apple-darwin)	4m 0s
Check (x86_64-unknown-linux-gnu)	2m 48s
Check lib (x86_64-unknown-linux-gnu)	1m 13s
Check MSRV (x86_64-unknown-linux-gnu)	2m 58s
Clippy (x86_64-unknown-linux-gnu)	2m 42s
Check (x86_64-unknown-linux-musl)	2m 37s
Check lib (aarch64-unknown-linux-gnu)	1m 53s
Check MSRV (aarch64-unknown-linux-gnu)	3m 38s
Clippy (aarch64-unknown-linux-gnu)	3m 27s
Check (x86_64-pc-windows-msvc)	5m 10s
Check lib (armv7-unknown-linux-gnueabihf)	2m 5s
Clippy (armv7-unknown-linux-gnueabihf)	3m 33s
Check (aarch64-unknown-linux-gnu)	3m 22s
Check MSRV (armv7-unknown-linux-gnueabihf)	3m 43s
Check (armv7-unknown-linux-gnueabihf)	3m 15s
Rustfmt	18s
Unit Tests (x86_64-unknown-linux-gnu)	1m 36s
Unit Tests (aarch64-unknown-linux-gnu)	2m 11s
Unit Tests (armv7-unknown-linux-gnueabihf)	2m 11s
	52m 40s

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