Add more tests for state access (block, msg, tx, etc.)

Move some of them out of SolidityEndToEndTests. Additionally this ensures the deterministic values of the testing infrastructure.

test/libsolidity/semanticTests/state/blockhash_basic.sol

@@ -0,0 +1,23 @@
+contract C {
+    bytes32 public genesisHash;
+    bytes32 public currentHash;
+    constructor() {
+        require(block.number == 1);
+        genesisHash = blockhash(0);
+        currentHash = blockhash(1);
+    }
+    function f(uint blockNumber) public returns (bytes32) {
+        return blockhash(blockNumber);
+    }
+}
+// ====
+// compileViaYul: also
+// ----
+// constructor()
+// genesisHash() -> 0x3737373737373737373737373737373737373737373737373737373737373737
+// currentHash() -> 0
+// f(uint256): 0 -> 0x3737373737373737373737373737373737373737373737373737373737373737
+// f(uint256): 1 -> 0x3737373737373737373737373737373737373737373737373737373737373738
+// f(uint256): 255 -> 0x00
+// f(uint256): 256 -> 0x00
+// f(uint256): 257 -> 0x00