Add byte order detection for internal SHA1 implementation for MacOS, POWER, RISC-V and s390 (#338)

* add macOS byte order defination to SHA1

* add ARM, s390 and RISC-V endian

* add PPC detection

Author: marty1885

trantor/utils/crypto/sha1.cc

@@ -40,7 +40,9 @@ A million repetitions of "a"
 #if defined(vax) || defined(ns32000) || defined(sun386) ||                  \
     defined(__i386__) || defined(MIPSEL) || defined(_MIPSEL) ||             \
     defined(BIT_ZERO_ON_RIGHT) || defined(__alpha__) || defined(__alpha) || \
-    defined(__CYGWIN32__) || defined(_WIN64) || defined(_WIN32)
+    defined(__CYGWIN32__) || defined(_WIN64) || defined(_WIN32) ||          \
+    defined(__arm64e__) || defined(__arm64__) || defined(__aarch64__) ||    \
+    defined(__riscv) || defined(_M_ARM64)
 #define BYTE_ORDER LITTLE_ENDIAN
 #endif
 
@@ -50,7 +52,7 @@ A million repetitions of "a"
     defined(apollo) || defined(__convex__) || defined(_CRAY) ||                \
     defined(__hppa) || defined(__hp9000) || defined(__hp9000s300) ||           \
     defined(__hp9000s700) || defined(BIT_ZERO_ON_LEFT) || defined(m68k) ||     \
-    defined(__sparc)
+    defined(__sparc) || defined(__s390__) || defined(__ppc__)
 #define BYTE_ORDER BIG_ENDIAN
 #endif
 #endif /* linux */