Added installation documentation page

docs/installation.md

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+# Installation
+
+### Distribution packages
+
+#### Ubuntu
+
+```bash
+# Currently supported Ubuntu versions are Focal, Jammy and Kinetic
+sudo add-apt-repository ppa:bkryza/clang-uml
+sudo apt update
+sudo apt install clang-uml
+```
+
+#### Fedora
+
+```bash
+# Fedora 36
+wget https://github.com/bkryza/clang-uml/releases/download/0.3.0/clang-uml-0.3.0-1.fc36.x86_64.rpm
+sudo dnf install ./clang-uml-0.3.0-1.fc36.x86_64.rpm
+
+# Fedora 37
+wget https://github.com/bkryza/clang-uml/releases/download/0.3.0/clang-uml-0.3.0-1.fc37.x86_64.rpm
+sudo dnf install ./clang-uml-0.3.0-1.fc37.x86_64.rpm
+```
+
+#### Conda
+
+```bash
+conda config --add channels conda-forge
+conda config --set channel_priority strict
+conda install -c bkryza/label/clang-uml clang-uml
+```
+
+### Building from source
+
+First make sure that you have the following dependencies installed:
+
+```bash
+# Ubuntu (clang version will vary depending on Ubuntu version)
+apt install ccache cmake libyaml-cpp-dev clang-12 libclang-12-dev libclang-cpp12-dev
+
+# macos
+brew install ccache cmake llvm yaml-cpp
+```
+
+Then proceed with building the sources:
+
+```bash
+git clone https://github.com/bkryza/clang-uml
+cd clang-uml
+# Please note that top level Makefile is just a convenience wrapper for CMake
+make release
+release/clang-uml --help
+
+# To build using a specific installed version of LLVM use:
+LLVM_VERSION=14 make release
+
+# Optionally
+make install
+# or
+export PATH=$PATH:$PWD/release
+```
+
+#### macos
+```bash
+# On macos, it is necessary to build clang-uml using the same llvm against which it is linked, e.g.
+brew install llvm
+
+export CC=/usr/local/opt/llvm/bin/clang
+export CCX=/usr/local/opt/llvm/bin/clang++
+LLVM_VERSION=14 make release
+```
+
+#### Windows
+
+##### Visual Studio native build
+
+These steps present how to build and use `clang-uml` using Visual Studio only without any
+`vcpkg` or `choco` dependencies package managers.
+
+First, install the following dependencies:
+
+* [Python 3](https://www.python.org/downloads/windows/)
+* [Git](https://git-scm.com/download/win)
+* [CMake](https://cmake.org/download/)
+* [Visual Studio](https://visualstudio.microsoft.com/vs/community/)
+* [Clang Power Tools](https://clangpowertools.com/) - this can be installed from VS Extension manager
+
+Create installation directory for `clang-uml` and its dependencies:
+```bash
+# This is where our working clang-uml binary will be located
+mkdir C:\clang-uml
+# This directory will be removed after build
+mkdir C:\clang-uml-tmp
+cd C:\clang-uml-tmp
+```
+
+Build and install yaml-cpp:
+
+```bash
+git clone https://github.com/jbeder/yaml-cpp
+cd yaml-cpp
+git checkout yaml-cpp-0.7.0
+cd ..
+cmake -S .\yaml-cpp\ -B .\yaml-cpp-build\ -DCMAKE_INSTALL_PREFIX="C:\clang-uml" -Thost=x64
+cd yaml-cpp-build
+msbuild .\INSTALL.sln -maxcpucount /p:Configuration=Release
+```
+
+Build and install LLVM:
+
+```bash 
+pip install psutil
+git clone --branch llvmorg-15.0.6 --depth 1 https://github.com/llvm/llvm-project/archive/refs/tags/llvmorg-15.0.6.zip
+cmake -S .\llvm\llvm -B llvm-build -DLLVM_ENABLE_PROJECTS=clang -DCMAKE_INSTALL_PREFIX="C:\clang-uml" -DCMAKE_BUILD_TYPE=Release -DLLVM_TARGETS_TO_BUILD=X86 -Thost=x64
+msbuild .\INSTALL.sln  -maxcpucount /p:Configuration=Release
+```
+
+Build and install clang-uml:
+
+```bash
+git clone https://github.com/bkryza/clang-uml
+cmake -S .\clang-uml\ -B .\clang-uml-build\ -DCMAKE_PREFIX_PATH="C:\clang-uml" -Thost=x64
+```