Bump to 0.9.0 and update changelog #95

Job	Run time
Run examples using Rust stable (ubuntu-latest)	12s
Verify code formatting (windows-latest)	31s
Test Rust stable (windows-latest, x86_64-pc-windows-msvc --all-features)	1m 25s
Verify code formatting (ubuntu-latest)	12s
Test Rust stable (windows-latest, x86_64-pc-windows-msvc --no-default-features)	1m 16s
Lint with clippy (windows-latest, --all-features)	34s
Test Rust stable (macos-latest, --all-features)	30s
Test Rust stable (macos-latest, --no-default-features)	27s
Lint with clippy (windows-latest, --no-default-features)	41s
Test Rust stable (ubuntu-latest, --all-features)	35s
Lint with clippy (ubuntu-latest, --all-features)	13s
Lint with clippy (ubuntu-latest, --no-default-features)	14s
Test Rust stable (ubuntu-latest, --no-default-features)	30s
Test Rust stable (ubuntu-latest, wasm32-unknown-unknown --all-features)	13s
Test Rust stable (ubuntu-latest, wasm32-unknown-unknown --no-default-features)	14s
Test Rust 1.58.1 (ubuntu-latest, --all-features)	39s
Test Rust 1.58.1 (ubuntu-latest, --no-default-features)	31s
	8m 57s

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