should rename pacakges: com.kazurayam.materialstore.filesystem -> materialstore.core.filesystem

[kazurayam]

v0.11.x, The "core" subproject contains the following packages:

• com.kazurayam.materialstore.filesystem -> com.kazurayam.materialstore.core.filesystem
• com.kazurayam.materialstore.map -> com.kazurayam.materialstore.core.map
• com.kazurayam.materialstore.util -> com.kazurayam.materialstore.core.util

the "base" subproject contains the following packages:

• com.kazurayam.materialstore.inspector -> com.kazurayam.materialstore.base.inspector
• com.kazurayam.materialstore.manage -> com.kazurayam.materialstore.base.manage
• com.kazurayam.materialstore.materialize -> com.kazurayam.materialstore.base.materialize
• com.kazurayam.materialstore.reduce -> com.kazurayam.materialstore.base.reduce

the "diagram" subject contains the following package:

• com.kazurayam.materialstore.dot -> com.kazurayam.materialstore.diagram.dot

• com.kazurayam.materialstore.report -> com.kazurayam.materialstore.base.report

[kazurayam]

will aim at 0.12.x

[kazurayam]

done at v0.12.0