chore(code): sbat section generator build tool

crates/build/src/sbat.template.rs

@@ -0,0 +1,6 @@
+/// Define the SBAT attestation by including the sbat.csv file.
+/// See this document for more details: https://github.com/rhboot/shim/blob/main/SBAT.md
+/// NOTE: This data must be aligned by 512 bytes.
+#[used]
+#[unsafe(link_section = ".sbat")]
+static SBAT: [u8; {size}] = *include_bytes!(concat!(env!("OUT_DIR"), "/sbat.out"));