IntelFrameworkPkg FrameworkUefiLib: Add new EfiLocateXXXAcpiTable APIs

https://bugzilla.tianocore.org/show_bug.cgi?id=967
Request to add a library function for GetAcpiTable() in order
to get ACPI table using signature as input.

After evaluation, we found there are many duplicated code to
find ACPI table by signature in different modules.

This patch adds new EfiLocateXXXAcpiTable() APIs in UefiLib
for the request and also the following patch to remove the
duplicated code.

V2:
ASSERT(FALSE) and return NULL instead of real implementation for the
new APIs as the IntelFrameworkPkg is a to-be-deprecated packages.

Cc: Younas khan <pmdyounaskhan786@gmail.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

IntelFrameworkPkg/Library/FrameworkUefiLib/FrameworkUefiLib.inf

@@ -37,6 +37,7 @@
   Console.c
   UefiLib.c
   UefiLibInternal.h
+  Acpi.c
 
 [Packages]
   MdePkg/MdePkg.dec