Add Changelog and bump version to 0.1.2(#79)

Author: felixcremer

CHANGELOG.md

@@ -0,0 +1,29 @@
+
+File filter
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+Links are updated with Changelog.jl using the command:
+
+```julia
+Changelog.generate(
+    Changelog.CommonMark(),             # output type
+    "CHANGELOG.md";                     # input and output file
+    repo = "JuliaDataCubes/PyramidScheme.jl", # default repository for links
+)
+```
+
+## [0.1.2]
+
+### Added 
+
+- Implemented proper MakieRecipies this should make Observable(::Pyramid) work
+- Added `cat` of Pyramids to concatenate on all levels
+
+### Fixed
+
+- Improved computation of the dimensions of the aggregated levels

Project.toml

@@ -1,7 +1,7 @@
 name = "PyramidScheme"
 uuid = "ec211b67-1c2c-4319-878f-eaee078ee145"
 authors = ["Felix Cremer <[email protected]> and contributors"]
-version = "0.1.1"
+version = "0.1.2"
 
 [deps]
 ArchGDAL = "c9ce4bd3-c3d5-55b8-8973-c0e20141b8c3"