Account for all tokens at genesis (#7350)

* Towards accounting for all tokens

* Move 5m tokens back into the big pool

* Flesh out batch 4

* Add a script to generate ValidatorInfo structs from a CSV file

* Remove commented out code and improve test

scripts/src/csv_to_validator_infos.rs

@@ -0,0 +1,42 @@
+// Utility to print ValidatorInfo structs for `genesis_accounts.rs`
+//
+// Usage:
+//   cargo run --bin solana-csv-to-validator-infos < validators.csv
+
+use serde::Deserialize;
+use std::error::Error;
+use std::io;
+use std::process;
+
+#[derive(Debug, Deserialize)]
+struct ValidatorRecord {
+    id: u64,
+    tokens: f64,
+    adjective: String,
+    noun: String,
+    identity_pubkey: String,
+    vote_pubkey: String,
+}
+
+fn parse_csv() -> Result<(), Box<dyn Error>> {
+    let mut rdr = csv::Reader::from_reader(io::stdin());
+    for result in rdr.deserialize() {
+        let record: ValidatorRecord = result?;
+        println!(
+        r#"ValidatorInfo {{name: "{adjective} {noun}", node: "{identity_pubkey}", node_sol: {tokens:.1}, vote: "{vote_pubkey}", commission: 0}},"#,
+            tokens = &record.tokens,
+            adjective = &record.adjective,
+            noun = &record.noun,
+            identity_pubkey = &record.identity_pubkey,
+            vote_pubkey = &record.vote_pubkey,
+        );
+    }
+    Ok(())
+}
+
+fn main() {
+    if let Err(err) = parse_csv() {
+        println!("error: {}", err);
+        process::exit(1);
+    }
+}