LSPS2: Add TimeProvider trait for expiry checks in no-std and std builds#3746

martinsaposnic wants to merge 4 commits intolightningdevkit:mainlightningdevkit/rust-lightning:mainfrom

martinsaposnic:no-std-time-lsps2martinsaposnic/rust-lightning:no-std-time-lsps2Copy head branch name to clipboard