Add clippy lints, action some clippy items

Cargo.lock

Cargo.toml

clippy.sh

src/acpi/aml/dataobj.rs

src/acpi/aml/namedobj.rs

src/acpi/aml/namespacemodifier.rs

src/acpi/aml/namestring.rs

src/acpi/aml/parser.rs

src/acpi/aml/pkglength.rs

src/acpi/aml/termlist.rs

src/acpi/aml/type1opcode.rs

src/acpi/aml/type2opcode.rs

src/acpi/rsdp.rs

src/acpi/rxsdt.rs

src/arch/x86_64/device/hpet.rs

src/arch/x86_64/device/local_apic.rs

src/arch/x86_64/device/rtc.rs

src/arch/x86_64/interrupt/irq.rs

src/arch/x86_64/paging/entry.rs

src/arch/x86_64/paging/mapper.rs