Pcbnew Polar Coordinate Angle Units

Description

Relative coordinate display in polar mode shows angle in degrees/10.

Steps to reproduce

1. Open pcbnew
2. Switch relative coordinate display to polar coordinate system
3. Move cursor to (1, 1) and observe displayed angle (4.5 instead of 45)

KiCad Version

Application: Pcbnew

Version: (5.99.0-7629-g0c3c3ca85d), release build

Libraries:
	wxWidgets 3.0.5
	libcurl/7.74.0 OpenSSL/1.1.1i zlib/1.2.11 zstd/1.4.5 libidn2/2.3.0 libpsl/0.21.1 (+libidn2/2.3.0) libssh2/1.9.0 nghttp2/1.41.0

Platform: Linux 5.9.14-arch1-1 x86_64, 64 bit, Little endian, wxGTK, KDE, x11

Build Info:
	Date: Dec 17 2020 02:03:31
	wxWidgets: 3.0.5 (wchar_t,wx containers,compatible with 2.8) GTK+ 3.24
	Boost: 1.75.0
	OCC: 7.5.0
	Curl: 7.74.0
	ngspice: 33
	Compiler: GCC 10.2.0 with C++ ABI 1014

Build settings:
	KICAD_SCRIPTING=ON
	KICAD_SCRIPTING_MODULES=ON
	KICAD_SCRIPTING_PYTHON3=ON
	KICAD_SCRIPTING_WXPYTHON=ON
	KICAD_SCRIPTING_WXPYTHON_PHOENIX=ON
	KICAD_SCRIPTING_ACTION_MENU=ON
	KICAD_USE_OCC=ON
	KICAD_SPICE=ON