* Move resolving #includes from MaterialBuilder to MaterialCompiler, before parsing the material.
- resolving #includes was happening after parsing, now moving before parsing.
this is because we could offload this resolution at build time for RuntimeMaterialCompiler
- filamat::resolveIncludes used to have an assumption where the given text was already
a shader block. this assumption is now broken so it finds the line offset internally.
thus the line offset field is removed from IncludeResult.
* Move include related classes to matc
a5f949d30c