v0.6.0

QuantumESPRESSOCommands v0.6.0

Diff since v0.5.0

Merged pull requests:

• New version: v0.5.0 (#54) (@singularitti)
• Change env in PwxConfig, etc., to ENV & Deprecate rely on QuantumEspresso_jll (#56) (@singularitti)
• New version: v0.6.0 (#57) (@singularitti)