ARROW-2283: [C++] Support Arrow C++ installed in /usr detection by pkg-config
ARROW-2283: [C++] Support Arrow C++ installed in /usr detection by pkg-config

pkg-config doesn't show -I... and -L... flags when ... is the system
default path (i.e. /usr). If Arrow C++ is installed in /usr, we
couldn't detect include path and library path for Arrow C++.

It's caused when we install Arrow C++ with .rpm and .deb packages.

Author: Kouhei Sutou <kou@clear-code.com>

Closes #1721 from kou/cpp-find-arrow and squashes the following commits:

4911c8fc <Kouhei Sutou>  Add Debian based system support
0a2d9c99 <Kouhei Sutou>  Support Arrow C++ installed in /usr detection by pkg-config

apache/arrow,pcmoritz/arrow,renesugar/arrow,icexelloss/arrow,dremio/arrow,laurentgo/arrow,laurentgo/arrow,laurentgo/arrow,tebeka/arrow,dremio/arrow,dremio/arrow,wagavulin/arrow,tebeka/arrow,laurentgo/arrow,icexelloss/arrow,cpcloud/arrow,wagavulin/arrow,pcmoritz/arrow,kou/arrow,yufeldman/arrow,laurentgo/arrow,icexelloss/arrow,icexelloss/arrow,xhochy/arrow,wesm/arrow,wesm/arrow,majetideepak/arrow,wesm/arrow,itaiin/arrow,itaiin/arrow,xhochy/arrow,xhochy/arrow,apache/arrow,apache/arrow,renesugar/arrow,cpcloud/arrow,kou/arrow,renesugar/arrow,laurentgo/arrow,kou/arrow,kou/arrow,cpcloud/arrow,kou/arrow,xhochy/arrow,cpcloud/arrow,yufeldman/arrow,itaiin/arrow,wagavulin/arrow,cpcloud/arrow,icexelloss/arrow,icexelloss/arrow,xhochy/arrow,majetideepak/arrow,renesugar/arrow,yufeldman/arrow,laurentgo/arrow,kou/arrow,pcmoritz/arrow,majetideepak/arrow,renesugar/arrow,xhochy/arrow,itaiin/arrow,icexelloss/arrow,yufeldman/arrow,cpcloud/arrow,cpcloud/arrow,majetideepak/arrow,apache/arrow,pcmoritz/arrow,itaiin/arrow,yufeldman/arrow,wesm/arrow,pcmoritz/arrow,renesugar/arrow,apache/arrow,laurentgo/arrow,dremio/arrow,yufeldman/arrow,renesugar/arrow,laurentgo/arrow,tebeka/arrow,dremio/arrow,laurentgo/arrow,wagavulin/arrow,wagavulin/arrow,wesm/arrow,tebeka/arrow,yufeldman/arrow,pcmoritz/arrow,kou/arrow,tebeka/arrow,icexelloss/arrow,xhochy/arrow,majetideepak/arrow,yufeldman/arrow,majetideepak/arrow,tebeka/arrow,yufeldman/arrow,wagavulin/arrow,wagavulin/arrow,xhochy/arrow,majetideepak/arrow,wesm/arrow,icexelloss/arrow,laurentgo/arrow,dremio/arrow,itaiin/arrow,pcmoritz/arrow,cpcloud/arrow,apache/arrow,kou/arrow,majetideepak/arrow,kou/arrow,apache/arrow,yufeldman/arrow,cpcloud/arrow,dremio/arrow,wagavulin/arrow,laurentgo/arrow,pcmoritz/arrow,wesm/arrow,wesm/arrow,wagavulin/arrow,majetideepak/arrow,itaiin/arrow,apache/arrow,majetideepak/arrow,apache/arrow,cpcloud/arrow,wagavulin/arrow,renesugar/arrow,majetideepak/arrow,kou/arrow,xhochy/arrow,itaiin/arrow,pcmoritz/arrow,wesm/arrow,wesm/arrow,tebeka/arrow,kou/arrow,itaiin/arrow,itaiin/arrow,pcmoritz/arrow,itaiin/arrow,cpcloud/arrow,apache/arrow,itaiin/arrow,icexelloss/arrow,tebeka/arrow,renesugar/arrow,xhochy/arrow,laurentgo/arrow,wesm/arrow,apache/arrow,pcmoritz/arrow,xhochy/arrow,itaiin/arrow,xhochy/arrow,dremio/arrow,pcmoritz/arrow,laurentgo/arrow,laurentgo/arrow,majetideepak/arrow,dremio/arrow,itaiin/arrow,icexelloss/arrow,icexelloss/arrow,dremio/arrow,itaiin/arrow,renesugar/arrow,pcmoritz/arrow,wesm/arrow,cpcloud/arrow,wesm/arrow,apache/arrow,renesugar/arrow,pcmoritz/arrow,dremio/arrow,wagavulin/arrow,yufeldman/arrow,renesugar/arrow,cpcloud/arrow,kou/arrow,wagavulin/arrow,tebeka/arrow,cpcloud/arrow,renesugar/arrow,tebeka/arrow,pcmoritz/arrow,xhochy/arrow,apache/arrow,renesugar/arrow,kou/arrow,majetideepak/arrow,icexelloss/arrow,xhochy/arrow,xhochy/arrow,kou/arrow,majetideepak/arrow,wesm/arrow,icexelloss/arrow,apache/arrow,renesugar/arrow,majetideepak/arrow