previously there was a global "default header" object which each OpatIO table used to build off of. The issue was that this did a shallow copy so if there were multiple OpatIO objects instantiated they would all modify the same header object. This has been resolved by moving the default header to a function which generates it fresh for each OpatIO object.
While writing 4DSSE we want a way to keep track of what defaults have been set for config files, and validate that we are using the same config variables where we want to. This python script generates a "default" yaml file based on the default values given in .get<T>
the new general purpose index design introduced a bug in the loader related to the byte position of the byteStart field. This has been resolved. Further, I have updated the save to ascii format to provide an explicit warning that the ascii version is only for debugging purposes and not meant to be used directly.
