Hooks-chaining alpha

This is a squash of 241 commits from https://github.com/XRPL-Labs/xrpld-hooks/tree/hooks-chaining
Ready for forward porting to rippled 1.8.3

Builds/CMake/RippledCore.cmake

@@ -429,12 +429,14 @@ target_sources (rippled PRIVATE
   src/ripple/app/tx/impl/Payment.cpp
   src/ripple/app/tx/impl/SetAccount.cpp
   src/ripple/app/tx/impl/SetRegularKey.cpp
+  src/ripple/app/tx/impl/SetHook.cpp
   src/ripple/app/tx/impl/SetSignerList.cpp
   src/ripple/app/tx/impl/SetTrust.cpp
   src/ripple/app/tx/impl/SignerEntries.cpp
   src/ripple/app/tx/impl/Taker.cpp
   src/ripple/app/tx/impl/Transactor.cpp
   src/ripple/app/tx/impl/apply.cpp
+  src/ripple/app/tx/impl/applyHook.cpp
   src/ripple/app/tx/impl/applySteps.cpp
   #[===============================[
      main sources:
@@ -981,6 +983,8 @@ target_link_libraries (rippled
   Ripple::opts
   Ripple::libs
   Ripple::xrpl_core
+  libssvm
+  #  /usr/lib/libwasmer.a
   )
 exclude_if_included (rippled)
 # define a macro for tests that might need to

Builds/CMake/RippledSettings.cmake

@@ -2,7 +2,7 @@
    declare user options/settings
 #]===================================================================]
 
-option (assert "Enables asserts, even in release builds" OFF)
+option (assert "Enables asserts, even in release builds" ON)
 
 option (reporting "Build rippled with reporting mode enabled" OFF)
 
@@ -15,7 +15,7 @@ if (unity)
     set (unity OFF CACHE BOOL "unity only available for cmake 3.16+" FORCE)
   else ()
     if (NOT is_ci)
-      set (CMAKE_UNITY_BUILD_BATCH_SIZE 15 CACHE STRING "")
+      set (CMAKE_UNITY_BUILD_BATCH_SIZE 5 CACHE STRING "")
     endif ()
   endif ()
 endif ()

Builds/CMake/deps/libssvm.cmake

@@ -0,0 +1,17 @@
+find_package (libssvm_src QUIET)
+if (NOT TARGET libssvm_src)
+    FetchContent_Declare(
+        libssvm_src
+        GIT_REPOSITORY git@github.com:RichardAH/libssvm.git
+        GIT_TAG        382bd11497439d334b37c585f38cc003d7aef080
+        )
+    FetchContent_MakeAvailable(libssvm_src)
+    #    FetchContent_GetProperties(libssvm_src)
+    #if(NOT libssvm_src_POPULATED)
+    #    FetchContent_Populate(libssvm_src)
+    #    add_subdirectory(${libssvm_src_SOURCE_DIR} ${libssvm_src_BINARY_DIR})
+    #endif()
+    #Message("libssvm: srcdir:")
+    #Message(${libssvm_src_SOURCE_DIR})
+    target_include_directories (libssvm SYSTEM INTERFACE ${libssvm_src_SOURCE_DIR}/include)
+endif()