inproper use of SRW API in dwsXPlatform.TMultiReadSingleWrite

[Алек Невашедело]

InitializeSRWLock never used(should be in ctor), or even imported.

[Eric Grange]

It is useless for Delphi objects, as per the doc

"The InitializeSRWLock function is used to initialize a SRW lock dynamically. To initialize the structure statically, assign the constant SRWLOCK_INIT to the structure variable."

the SRWLOCK_INIT constant is a null pointer, and Delphi objects fields are automatically initialized to zeroes (unlike C++ "new", which does not initialize fields to zeroes).